Chemotechnique is a family owned and run business since its inception 40 years ago, growing and developing every year, and now the leading manufacturer of open-choice (operator-loaded) patch test systems in the world.

 

Chemotechnique is recognised by world-leading Dermatologists as the trusted name in patch testing.

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Chemotechnique is 100% dedicated to and focussed on just patch testing products and closely-associated accessory products; with no other product lines or other distractions.  

 

Based in the Skåne region of southern Sweden, Chemotechnique is leading the way globally for patch testing - serving Dermatologists and Allergists globally by supplying their patch test products through a global distribution network of appointed exclusive distributors to over 100 countries, including through AllerDerm Caribbean Ltd as the exclusive distributor for the Caribbean region.

 

Chemotechnique offer a complete range of high-quality patch test products including over 550 different haptens (also known as allergens), patch test chamber strips (also known as Units), as well as accessory products, and spot tests to indicate the presence of certain metals in common objects.

 

Chemotechnique ensure that their product line-up has the ideal composition due to their emphasis on R&D and working in close co-operation with contact dermatitis research groups such as the International Contact Dermatitis Research Group (ICDRG), the European Environmental and Contact Dermatitis Research Group (EECDRG) and the North American Contact Dermatitis Group (NACDG).

 

The haptens are produced by Chemotechnique in Sweden under strict pharmaceutical quality control, following the GMP quality management system audited by the Swedish Medical Products Agency. The production processes are certified by the ISO 13485 and ISO 9001 Quality Management systems.

 

Their high-quality products and reliable service aid Dermatologists and Allergists and their patients in their diagnosis of contact allergy and identification of the problem contact allergens.

 

The aim of Chemotechnique is not only to provide Dermatologists and Allergists with the necessary patch test haptens and patch test chambers, but also to actively contribute to the development of new hapten tests and the optimal selection of haptens to suit the circumstances of patients, with special emphasis in the field of occupational dermatology.

 

Much of their work is also focused on the standardisation of patch test haptens, in collaboration with the various national and international clinical research groups, with the highest purity, optimal exact formulation and precise concentration.  

​

Chemotechnique is also deeply involved in the training and education of Dermatologists and other medical professionals in the art and science and practice of patch testing.

For example, the following videos are available online:

 

1. Patch Testing the IQ way

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2. Chemotechnique IQ Ultra Patch Test chambers

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3. Chemotechnique IQ Patch Test preparation

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4. Patch Testing Procedure

 

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​AllerDerm Caribbean Ltd is appointed by Chemotechnique of Sweden to be their exclusive distributor for the Caribbean region. This means that ADCL is the sole supplier to consumers in the countries of the Caribbean region.

 

The Caribbean region countries that are supported by AllerDerm Caribbean Ltd are therefore as follows:

1. Anguilla

2. Antigua & Barbuda

3. Aruba

4. Bahamas

5. Barbados

6. British Virgin Islands

7. Cayman Islands

8. Cuba

9. Curacao

10. Dominica

11. Dominican Republic

12. Grenada

13. Haiti.

14.Jamaica

15. Montserrat

16. St Kitts & Nevis

17. St Lucia

18. Sint Maarten

19. St Vincent & Grenadines

20. Trinidad & Tobago

21. Turks & Caicos

​​

Note that this list does not include certain countries within the Caribbean region, for example Puerto Rico, USVI.
 

These Caribbean countries comprise over 45 million persons, but unfortunately the population of Dermatology Specialist doctors and Allergy Specialist doctors is barely over 100, and other support services are also largely and sadly inadequate.

​

Within this Caribbean region, no other distributor company can supply the Chemotechnique products, if delivery is to be made to a Caribbean country.

 

Conversely, AllerDerm Caribbean Ltd cannot legally supply Chemotechnique products to a Dermatologist / Allergist based in USA or Mexico, and other countries outside the Caribbean region, except with the explicit individual permission from Chemotechnique..

 

Chemotechnique will have appointed other companies as exclusive distributors for most of those other countries, with a network of distributor companies spanning the entire world.​​​

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Contact us for more information.

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The Order & Delivery Process

We promise you prompt, efficient, transparent, honest and personal communication, whether by:

​

Email           allerderm.caribbean@gmail.com

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Call.             +44 7960 315127

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WhatsApp Message.   +44 7960 315127

 

The entire process from initial enquiry to receipt of the product should take a maximum of one month.

 

The usual sequence of events is described in the section of the website specifically reserved for medical professionals based in the Caribbean, who are intending to purchase Chemotechnique products through AllerDerm Caribbean Ltd.

Contact ADCL here for access. to this additional information.

To qualify, you will be asked to provide your name, occupation, location and email address.​

Patch Test Haptens such as are manufactured by Chemotechnique are classified as Diagnostic Tests by medical regulatory authorities. In some countries (such as USA, and in the EU), these are highly regulated, and more so with every year that passes and new tougher regulations are imposed, though not (yet?) as highly regulated as for biological vaccines and chemical-based pharmaceutical products. 

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The Patch Test Chamber Strips  (also known as Units) are classified as Medical Devices, of a low order.

​

Chemotechnique as a manufacturer is qualified with all the necessary regulatory systems that are mandatory in Sweden and in the EU.

 

Chemotechnique products, the Haptens and Chambers, are of course registered (approved) by the local national medical regulatory authorities where this is necessary, such as EU, or UK, or USA, etc.

 

Commercial Regulations

Once a product is registered in a country, then importation of the product can take place unhindered, for any number of events, and recipients, over a long period of time.

 

In contrast, an Import Permit is a de facto approval by the local national medicines regulatory authority for each individual importation.

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The application to the Customs Authority of the individual country can be made by a Customs (Importing) Agent, using information provided by AllerDerm Caribbean Ltd and/or by Chemotechnique.

​​​

Medico-Legal Regulations

If there are any medico-legal regulations or restrictions or limitations on the use of such Patch Test products in the particular country, then the Client is responsible for their own compliance with relevant medico-legal restrictions and requirements of their local country. Most usually, clinical usage of such Patch Test products by any medical Specialist is not restricted.

                                         _________

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If there are any questions about commercial matters or medico-legal matters, then please contact ADCL.

We will do our very best to help you.

​

For further information on the Medico-legal regulations pertinent to the Caribbean countries, this is described in the section of the website specifically reserved for medical professionals based in the Caribbean, who are intending to purchase Chemotechnique products through AllerDerm Caribbean Ltd.

Contact ADCL here for access to this additional information.

To qualify, you will be asked to provide your name, occupation, location and email address.

​

Chemotechnique is 100% focussed and dedicated.........          to the manufacture of patch test products, and the further development of that product line to comply with advances and other changes to the clinical practice of patch-testing Dermatologists and Allergists from around the world.

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They manufacture and offer for sale their patch test products through their global network of over 50 national distributors to  over 100 countries.

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AllerDerm Caribbean Ltd is 100% focussed and dedicated....    to the supply of the patch test products of Chemotechnique to Dermatologists and Allergists throughout the Caribbean region.

With our combined decades of experience:

• With the clinical application of patch tests

• With Patch Test products from various manufacturers

• Working with Chemotechnique in different countries around the world

• Knowledge of international sales and marketing

• Knowledge of the Caribbean countries and markets

• Clinical practice within Dermatology and Allergy

• Experience of working with Dermatologists and Allergists around the world

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We firmly believe that:

• We can provide the very best service and support…..

• For the very best patch test products….

• For you to use in your clinical practice.​

​

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                                Haptens

For pictures of all the Chemotechnique products, see the images below this section of text.

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The ~550 Haptens manufactured and sold by Chemotechnique are available as either individual haptens, presented in 5ml syringes or in 8ml solution in bottles, or as complete Series of individual haptens. These are all available through AllerDerm Caribbean Ltd for Caribbean-based Specialist clinicians.

Individual Haptens
Each of the ~550 haptens can be purchased and supplied individually, though for clients in the Caribbean it is far more economical to order and receive an entire Series or more, rather than one or a few individual haptens. This is due to the cost of transportation and the workload involved of payments, import permits, customs clearance, etc.

Series of Haptens
Hapten Series can be either Standard/Baseline Series, or Specialist Series. These Series are simply collections of individual haptens, that have been decided by the leading patch-testing Dermatologists of the country or of the world, and implemented by Chemotechnique.

 

National & International Standard/Baseline Series
There are currently 30 different Baseline (or Standard) Series,    as described in the Chemotechnique Catalogue 2025 and Chemotechnique website.

Popular examples of Baseline/Standard Series that are relevant for Caribbean-based Dermatologists are as follows:

International Standard Series  IS-1000.             30 haptens

European Baseline Series       S-1000               32 haptens
European Comp. Series          ECB-1000.         42 haptens
Latin American Series              LA-1000            40 haptens
British Standard Series            GB-1000            50 haptens
North American Series             NA-1000            60 haptens
North American Comp. Series  NAC-80             80 haptens

International Comp. Series      ICB-1000.          80 haptens
ACDS Core Series                   AC-1000            89 haptens.

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For a Dermatologist or other Specialist or even General Practitioner contemplating setting up a new Patch Testing service in their clinic, the choice of which hapten/allergen screening series to use may be quite a difficult decision.

 

In the many countries that have their own national screening series, such as GB, Sweden, Poland, Australia, NZ and many more countries, then the decision is rather easy. Go with the national or regional series that the local expert patch testers have researched and recommended.

 

The Dermatologist based in Europe could choose their own national series or even the European Baseline Series, or perhaps the European Extended Baseline Series.

 

But for Dermatologists etc., based in the Caribbean, the choice is not so easy, as there is no Caribbean Baseline Series.

 

(So perhaps it is time for some leadership from the expert patch testers in various countries of the Caribbean;
CDA, are you listening?).

 

So which Baseline Series upon which to base your new patch testing service should be selected?

 

That depends !!

 

The more comprehensive the Baseline Series, the greater the capital outlay for purchasing all the haptens, as the cost is more-or-less proportional to the number of haptens in the screening panel. Note though that the cost per patch test hapten is only approx. 20 cents ($0.20) per dose administered. So a 40-hapten screening panel will only cost approx. $8.00 in hapten costs, whereas an 80-hapten screening panel will cost approx. $16.00 in hapten costs

 

Also, the bigger the screening panel, then the greater the number of patch test chambers and chamber strips that will be needed per patient, and so the greater the cost for the chambers. Note though that the cost per patch test chamber is only approx. 18 cents per chamber ($0.18), for the optimal IQ Ultimate chambers.

 

With hapten costs and chamber costs taken together, a 40-hapten screening panel will only cost approx. $15.20 in material costs, whilst an 80-hapten screening panel will cost double that, so approx. $30.

 

However, an 80-hapten screening panel is most probably going to be so much more clinically efficient by providing so much more useful clinical information about the patient’s sensitivities.

​

The larger panels also tend to be more recently constructed by the relevant Dermatologist organisations of expert patch testers, which therefore would represent the currently clinically relevant haptens. In contrast, the older series may include some haptens which are no longer clinically relevant, and will not include newer haptens that have become clinically important.

 

So it is a trade-off of cost vs clinical benefit.

 

There is also the very significant factor of Dermatologists in private practice being in a competitive situation and wanting to offer the best possible service to prospective patients. An 80-hapten testing panel is so much more impressive to a prospective patient than a 40-hapten testing panel, all for just $15 more in material costs.

 

So which screening panel to choose, and use, and promote??

 

To help the Dermatologist make their choice, AllerDerm Caribbean Ltd has compiled a table (pdf file) showing the various popular Baseline Series and their constituent haptens/allergens.

This table is available for download here.​​​​​​​​​​​​​

 

The table also includes good relevant information on the expiry dates of the relevant haptens/allergens and also information on whether the individual haptens/allergens can be pre-loaded onto chamber strips (IQ Ultimate or IQ Ultra) ahead of the patient consultation.

 

If you have any questions about these topics, just ask.

 

Our recommendation is the International Comprehensive Baseline Series (ICB-1000), which is identical to the North American Comprehensive Baseline Series (NAC-80), each with the exact same 80 haptens. 

​

As these two series each incorporate 80 haptens, this means approx 80 haptens x 150 patients = 12,000 doses = 12,000 patch test chambers = 1,200 chamber strips = 12 boxes of chambers; (ideally IQ Ultimate for use in the Caribbean).

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Specialist Series
There are currently 24 different Specialist Series, as described in the Chemotechnique Catalogue 2025 and in the Chemotechnique website.

 

All Specialist Series are as follows:

Bakery Series.                         B-1000                20 haptens

Cosmetic Series                      C-1000                63 haptens
Corticosteroid Series               CS-1000              13 haptens

Cutaneous Adverse Drugs.     CAD-1000            31 haptens

Dental Screening Series.         DS-1000              34 haptens

Dental Materials - Patients.      DMP-1000           24 haptens

Dental Material - Staff.             DMS-1000            10 haptens

Epoxy Series                            E-1000                 15 haptens

Eur. Photopatch - Baseline      EP-1000               19 haptens

Eur. Photopatch - Extended    EPE-1000             12 haptens

Fragrance Series                     F-1000                  48 haptens
Hairdressing Series                 H-1000                 38 haptens

Implant Series                          IMP-1000             44 haptens

Isocyanate Series                    I-1000                    7 haptens

Leg Ulcer Series                      LU-1000               27 haptens

Medicament Series                  ME-1000              21 haptens

Metal Series                             MET-1000           55 haptens

Metal Extended Series             METE-1000         25 haptens

Methacrylate Series 1*             MA-1000             27 haptens

Methacrylate Series 2^             MN-1000             12 haptens

Oil & Cooling Fluid Series.       O-1000                35 haptens

Plant Series                              PL-1000              18 haptens

Plastics & Glues Series            PG-1000             24 haptens
Rubber Additives Series           R-1000                27 haptens
Shoe Series                              SH-1000             24 haptens
Sunscreen Series                      SU-1000            21 haptens
Textile Colours & Finish Series  TF-1000             34 haptens.

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* = Adhesives, Dental, Printing and other

^ = Artificial Nails

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                            ​

                             Accessory Products

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Application Device
The Application Device for IQ Ultra™ makes advance filling of test substances even easier. The device is specifically designed for the IQ Ultra™. It is cost effective and saves nurses/technicians time, as they can prepare test series up to two weeks prior to use. Note though that volatile haptens such as acrylates and fragrances should not be pre-loaded. The device significantly facilitates preloading of multiple IQ  Ultra™ or IQ Ultimate™ Patch Test Chamber Strips Units. This is convenient in preparing test series in advance, such as the Baseline Series, for a suitable number of patients. This device is highly recommended, especially for individuals who may not yet be experienced and accustomed to working with patch test chambers.

​

The design prevents the Chamber Strips from sliding during application of the haptens. The device is equipped with a special function to detach and attach the syringe caps. This eliminates contamination of fingers during the dispensing of haptens. The device has a low weight of only 0.3 kg. The dimensions are (w x h): 43 x 27 cm.

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For a video of how to best use the Application Device, see here. 

 

Note that the Application Device is provided free of charge if 3 or more boxes of IQ Ultra or IQ Ultimate chambers are purchased. Be sure to ask for this special offer.

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Reading Plate
The Reading Plate for IQ Ultra™/IQ Ultimate™ is used to facilitate the reading of a patch test. It contains several pictures of different types and grades of patch test positive reactions, irritant reactions and questionable reactions. One Reading Plate is included in every box of Chambers.
 

The Chemo Skin Markers™

These are the ideal solution for marking the patch test site or other dermatology uses. The non-sterile marker contains gentian violet ink which provides an effective means for marking the skin. It has a medium round-type tip for distinct marking. It is long lasting and ideal for the marking of patch test sites. The skin friendly ink is non-toxic, non-irritating and non-tattooing. There are 4 pens in the set.
 

UV Lamp

Chemotechnique offer a handheld UV Lamp for easy reading of fluorescent markings, such as from the Chemo Skin Marker - UV™.

The UV Lamp can also be used as a tool for detecting:

     • Pityriasis Versicolor 

     • Tinea Capitis 

     • Erythrasma

and when investigating alterations of the patient’s pigmentation.

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For further information on any Chemotechnique products...
see the  Chemotechnique Catalogue 2025 
or the Chemotechnique website

or contact ADCL at allerderm.caribbean@gmail.com.

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​​​​

                                Chambers

For pictures of all the Chemotechnique products, see the images below this section of text.

 

When purchasing any Series of patch test haptens it is important to also order the patch test Chambers that are an essential part of the patch testing procedure. 

​

You may already have patch test Chambers from previously, and these may be from Chemotechnique, or they may be some other chambers from some other manufacturer.

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If, however, you are starting up a patch test service for your patients, or simply rejuvenating your patch test products in total, then it is recommended that your initial purchase of the patch test Haptens includes an order for a corresponding number of patch test Chamber boxes.

 

For example, a purchase of the LATAM Series of 40 haptens is adequate for 40 x 150-200 tests = 6,000 to 8,000 tests. Each box of Chamber strips contains 100 strips each of 10 Chambers (test sites) so each box is adequate for 1,000 tests. Therefore it is recommended that the initial purchase of a LATAM Series is accompanied by an order of ideally 6 boxes of Chambers.

 

At the other end of the testing scale, the recently introduced ACDS Core Series, of 90 haptens, would provide 90 x 150 - 200 tests, so in total 13,500 to 18,000 tests, so would require 14 to 18 boxes of Chambers.

 

The shelf life of the the Chamber boxes is 2 years from date of manufacture and is usually >20 months from date of delivery, with an absolute minimum of 12 months (so the same as the most stable of the Haptens). Simply put, the Haptens would expire before the Chambers, so there is little to no risk in ordering a corresponding number of Chamber boxes along with your order for the patch test Haptens. If the Chambers are ordered together with the Haptens, then there would be very little if any increase in the cost of the delivery, which is approx. US$250 to $300 whether a small package of Haptens or a larger package of Haptens with Chamber boxes. Conversely, ordering Chamber boxes separately later will incur a significant delivery charge (approx. US$250 - $300).

 

For information on how to use any of the Chemotechnique IQ Chambers, see the YouTube video "Patch Testing the IQ Way".

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There are now available three different patch test Chamber types manufactured by Chemotechnique and available from AllerDerm Caribbean Ltd for Caribbean-based Specialist clinicians.

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BasIQ Ultra™ Chamber BasIQ-U

From early 2023 a third chamber type has become available from Chemotechnique. This is called "BasIQ Ultra", and comprises a new design with open-type chambers (no lid) with 10 test chambers per strip and 50 strips per box.

​

•  Each box contains 50 Chamber Strips. Each Chamber Strip contains 10 Chambers (test sites), in 2 parallel rows of 5 chambers. Therefore, each box can do 500 patch tests.

​

These new chambers are essentially the simpler type of chambers that are also manufactured and made available by other companies. 

 

The simplicity of the BasIQ chamber type and the smaller quantity box means that the cost is very much reduced compared to other chamber types.

 

As there is no sealable lid on the BasIQ Chambers, then they are not suitable for predispensing of the haptens prior to usage, so they are similar in that regard to the patch test chamber types from other manufacturers.

 

However, in the humid climes of the Caribbean, our strong recommendation is still for the IQ Ultimate Chambers.

Further details of the BasIQ Chambers can be found on page 11 in the Chemotechnique Catalogue 2025

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IQ Ultra™ Chamber IQ-U

This is the default Chamber used for the Chemotechnique patch test system.

​

•  Each box contains 100 Chamber Strips. Each Chamber Strip contains 10 Chambers (test sites), in 2 parallel rows of 5 chambers. Therefore, each box can do 1,000 patch tests.

See the adjacent pictures.

 

Consider that for example, the ACDS Core Series is 90 tests and therefore will require the use of 9 Chamber strips. Thus, a box of Chambers will be adequate for 11 patients each tested with only the ACDS Core Series.

​

•  Each chamber has a filter paper incorporated, which eliminates the need to manually add loose filter papers for use with any liquid-based haptens.

​

•  The rim of each chamber has an adhesive layer to optimise adhesion to the skin and so to eliminate leakage. This makes IQ Ultra™ a closed-cell system, enhancing occlusion and confining the test reaction within the parameter of the square-shaped chamber.

​

•  The size of the IQ Ultra™ chamber strip is small to allow the application of multiple Chamber Strips onto the patients’ backs.

​

•  The width of the tape is 52 mm and the length is 118 mm.

​

•  The volume of the chamber is 32 μl and the inside area of the chamber is 64 µl.

​

•  The chambers are made of thin and soft polyethylene foam material to maximise patient comfort.

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•  The highest quality hypo-allergenic surgical tape is used for the IQ Ultra™.

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•  Each strip of 10 chambers of IQ Ultra™ is attached to a protective plastic cover with corresponding compartments which makes it possible to re-attach the tape after advance filling of the chambers with the haptens.

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 •  A Reading Plate for IQ Ultra™ / IQ Ultimate™ is supplied in each box.

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IQ Ultimate™ Chamber IQ-UL

Practically, the IQ Ultimate™ is suited for more humid and tropical climes (such as the Caribbean region) where sweating/perspiration would be the norm. The IQ Ultimate Chamber is therefore most recommended for use by Caribbean-based Dermatologists.

 

The IQ Ultimate™ patch test Chamber Strip is based on the widely-used IQ Ultra™ but has three important new features due to it’s new carrier tape.

 

The three features below are unique for IQ Ultimate™.

1. Water resistant - permits showering 

2. Elastic - allows normal daily activities

3. Transparent - facilitates reading of the tests.

 

The IQ Ultimate Chamber therefore allows the patient to go about their normal daily activities for the 48-hour period whilst the Chambers are attached to the patient’s back during the patch test procedure.

​

See the adjacent pictures.

​

• Each box of IQ Ultimate Chamber Strips contains 100 Chamber Strips. Each Chamber Strip contains 10 Chambers (test sites), in 2 parallel rows of 5 chambers. Therefore, each box can do 1,000 patch tests. Consider that for example, the ACDS Core Series is 90 tests and therefore will require the use of 9 Chamber strips. Thus, a box of IQ Ultimate Chambers will be adequate for 11 patients each tested with only the ACDS Core Series.

•  Each chamber is made of additive-free polyethylene plastic foam with a filter paper incorporated, thereby obviating the need for the manual addition of filter paper for use with any liquid-based haptens.

•  The rim of each chamber has an adhesive layer to optimise adhesion to the skin and to eliminate leakage. This makes IQ Ultimate™ a closed-cell system, enhancing occlusion and confining the test reaction within the square-shaped parameter of the chamber. This feature is crucial in standardised patch testing, which is based on the concept of dose of hapten per unit of area of skin under test. The area has to be exactly defined.

•  The chambers are made of thin and soft polyethylene foam material, to maximise patient comfort.

•  A hypo-allergenic transparent carrier film is used for the IQ Ultimate™. 

​

•  Each strip of 10 chambers of IQ Ultimate™ is attached to a protective plastic cover with corresponding compartments which makes it possible to re-attach the tape, thereby enabling advance filling of the chambers with the haptens.

​

•  The width of the tape is 52 mm., and the length is 118 mm.

​

•  The volume of the chamber is 32 µl and the inside area of the chamber is 64 mm2.

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•  A Reading Plate for IQ Ultra™ / IQ Ultimate™ is supplied in each box.

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                             Spot Tests

Chemotechnique also manufacture two Spot Tests which are used by Contact Dermatitis patients to identify the presence of nickel or cobalt in metal objects with which they may come into contact.

For further information see www.chemotechnique.se
or contact ADCL at enquiries@allerderm-caribbean.com.
 

Chemo Nickel Test™

Chemo Nickel Test™ is an easy one-step method to detect free Nickel in metallic objects. The test consists of an ammoniacal solution of Dimethylglyoxime (DMG) for the detection of nickel in various metallic objects. DMG produces a bright, reddish-pink insoluble salt with nickel. The Spot test detects free nickel down to a limit of 10 ppm (parts/million). The sensitivity threshold of most nickel allergic patients is above 11 ppm. Some strongly allergic patients will however still react to objects releasing amounts below the threshold of the test. With no known cure for nickel allergy, nickel avoidance is key to protect your skin from allergic reactions. For further information see Chemotechnique website or contact ADCL at allerderm.caribbean@gmail.com.

 

Chemo Cobalt Test™
The Chemo Cobalt Test is an easy one-step method to detect free Cobalt in metallic objects.  The test detects free cobalt down to a limit of 8.3 ppm (parts/million). The sensitivity threshold of most cobalt allergic patients is above 10 ppm. Some strongly allergic patients will however still react to objects releasing amounts below the threshold of the test. Chemo Cobalt Test™ consists of Nitroso-R salt for the detection of cobalt in various metallic objects. Nitroso-R salt produces a bright, reddish-pink insoluble salt with cobalt. This test will be of benefit to you in order to avoid exposure to cobalt thereby minimising contact dermatitis caused by cobalt releasing objects.

​

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For further information on any Chemotechnique products...
see the  Chemotechnique Catalogue 2025 
or the Chemotechnique website

or contact ADCL at allerderm.caribbean@gmail.com.

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