Proficiency Tests


DLA-Registration: Online-Form 2020 [get Form 2018 / 2019 / 2020]

Here you may register your participation in the following proficiency tests directly.
Please mark the respective proficiency tests in the related column for „subscription“!

Preliminary Program 2020
(more PTs and prices will be announced from October 2019)


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(single)

Art.-No.
(Lot-No.)

Proficiency Test

Shipping Samples

Prize



Elicitors of Allergies and Intolerance Reactions




Allergen-PTs (qualitative / quantitative) - Accredited Programs -

ptAL01 - 09: Two Samples with Allergens in a Food Matrix, as pastry, chocolate or wine, are provided for qualitative and quantitative determination. One of these samples and the "Spiking Level Sample" were prepared adding the allergenic ingredients. The "Spiking Level Sample" contains the allergens in a simple matrix in similar amounts. The evaluation of results will be qualitative and quantitative. For information DLA calculates a recovery rate for the "positive"-sample and the "Spiking Level Sample". Any suitable method can be applied for analysis.


ptAL01
(Lot 20EgFi)

Allergens I: Egg and Fish in Instand Soup Powder with "Spiking Level Sample“

January


ptAL02
(Lot 20SoGl)

Allergens II: Soya and Rye ("Gluten") in „gluten-free“ Pastry with "Spiking Level Sample“

February


ptAL03
(Lot 20MiGl)

Allergens III: β-Lactoglobulin, Casein and Gluten in Infant Food with "Spiking Level Sample“

March


ptAL04
(Lot 20CeMuSe)

Allergens IV: Celery, Mustard and Sesame in Instant Soup Powder with "Spiking Level Sample“

June


ptAL05
(Lot 20PeAl)

Allergens V: Peanut and Almond in Pastry with "Spiking Level Sample“

September


ptAL06
(Lot 20HaPc)

Allergens VI: Hazelnut and Pecannut in Chocolate with "Spiking Level Sample“

October


ptAL07
(Lot 20CrCo)

Allergens VII: Crustaceae and Coconut in Instant Product with "Spiking Level Sample“

November


ptAL08
(Lot 20AlCw)

Allergens VIII: Almond and Cashew in Veggie Burger Powder with "Spiking Level Sample“

December


ptAL09
(Lot 20MiEg)

Allergens IX: Casein and Egg White Protein in Wine with "Spiking Level Sample“

February


ptAL10
(Lot 20Gl)

Allergens X: Gluten in „gluten-free“ Beer (2 Samples)

June



Allergen-Screening (qualitative)

ptALS1-3: 4 Samples with Allergens in a simple Carrier Matrix are provided. The evaluation of results is strictly qualitative with indication of the obtained agreements with the consensus values of the participants and the spiking of samples. For analysis ELISA (+ Lateral Flow), PCR and LC/MS can be applied.


ELISA
PCR
LC/MS

ptALS1
(Lot 20)

Allergen-Screening I - 4 Samples qualitative: Cashew, Hazelnut, Macadamia, Almond, Brazil Nuts, Pecan, Pistachio, Walnut

March


ELISA
PCR
LC/MS

ptALS2
(Lot 20)

Allergen-Screening II - 4 Samples qualitative: Crustaceae, Egg, Fish, Milk, Molluscs, Mustard (yellow/white, brown and black), Soybean

July


ELISA
PCR
LC/MS

ptALS3
(Lot 20)

Allergen-Screening III - 4 Samples qualitative: Cereals containing Gluten (Wheat, Rye, Barley and Oat), Peanut, Lupine, Celery (Leaves / Stem, Root and Seed), Sesame (white and black)

October






Allergen-Response of processed allergenic Ingredients

ptALR1-2: 5 Samples of a differently processed Allergen are provided for qualitative and quantitative determination a simple Carrier Matrix as well as a „Blank Sample“ (Carrier Matrix). The individual processed ingredients of the samples are mixed gravimetrically by DLA each from 4 industrially manufactured products. The analytical methods are optional.


ptALR1
(Lot 20Mu)

Response PT Mustard: Processed samples Mustard flour (Sinapis alba), table mustard (Sinapis alba), Dijon mustard (Brassica spp), vegetarian spread (heated) and spice cracker (baked) in potato powder matrix (levels: 25 - 150 mg/kg)

November


ptALR2
(Lot 20Se)

Response PT Sesame: Processed samples white sesame (ground), black sesame (ground), sesame paste (Tahini), vegetarian spread (heated) and spice cracker (baked) in potato powder matrix (levels: 25 - 150 mg/kg)

April



Action Level Matrix- ALM Verification

ptALM1-2: A Calibration Set of 5 Samples of an Allergen in a Specific Matrix is provided for qualitative determination as well as a „Blank Sample“ (Matrix). The allergen levels of the calibration row range from 1/10 to at least twice the Action Level 1 (VITAL concept 2.0) and judgment value of the German Commission ALTS/ALS. Valuation of PT-results is qualitative in Scores of 1-5 (Score 3 = Action Level successfully identified). Quantitative results will be reported for information. The analytical methods are optional.


ptALM1
(Lot 20Mu)

ALM-Verification Mustard: 5 calibration samples containing mustard (Sinapis alba) in Spice Mixture (levels: 0,50 / 2,5 / 5,0 / 12,5 / 25 mg/kg), Allergenic Material: mixture of at least 4 mustard varieties

November


ptALM2
(Lot 20Se)

ALM-Verification Sesame: 5 calibration samples containing white sesame in Spice Cracker Matrix (levels: 1,0 / 5,0 / 10 / 25 / 50 mg/kg), Allergenic Material: mixture of at least 4 mustard varieties

March




Other Elicitors of Allergies and Intolerance Reactions



ptAI01
(Lot 20LaFr)

Lactose + Fructose in "lactose-free" infant-food with "Spiking Level Sample“

April




Mycotoxins





NEW: Multi-Mycotoxin-Screening (qualitative / quantitative, 2 different Samples with positive and "negative" Contents)
- Accredited Programs -



ptMYS1
(Lot 20Multi)

Mycotoxin-Screening: Aflatoxins, Ochratoxin A, DON, Zearalenon and Fumonisins in Breaktfast Cereals (with corn and/or other cereal products)

April




NEW: Mycotoxin-Matrix-Sets (quantitative, 3 different Samples)
- Accredited Programs -



ptMYM1
(Lot 20Afl)

Mycotoxin-Matrices: Aflatoxins in Nuts, Cereal Products, Spice Mixture and Dried Fruits (4 Samples)

September




Special Matrices (quantitative, 2 identical Samples)
- Accredited Programs -



ptMY23
(Lot 20Ota)

Ochratoxin A in Grape Juice Concentrate

June


ptMY60
(Lot 20Pat)

Patulin in Apple Juice

March




Potentially toxic Compounds, Contaminants and Residues



ptTX01
(Lot 20Cum)

Cumarin in Pastry (Cookies)

November


ptTX04
(Lot 20Met)

Contaminated Food: Heavy Metals (Al, Pb, Cd, Hg, As and organic Hg) in Fish / Seafood Powder

May




Genitically modified Organisms



ptGMS1
(Lot 20MaSo)

GMO-Screening I (qualitative): 5 Samples with positive/negative amounts of p-35S, t-NOS, p-FMV, CP4 EPSPS, 35S-Pat, Cry1Ab/Ac / GMO-Maize (Bt11, MIR604) and GMO-Soya (RR GTS 40-3-2, RR2 MON89788)

May




Nutrients, Additives and Ingredients of Quality



ptAU01
(Lot 20FiIn)

Dietary Fiber and Inulin in Cereal Product (new: 2 Samples, with and without Inulin)

February


ptAU04
(Lot 20SuAl)

Sugar Alcohols (E420, E421, E953, E967, E968) in Pudding Powder

July


ptAU06
(Lot 20Caf)

Methylcafestol in 3 Coffee Blends

September


ptAU07
(Lot 20Et)

Ethanol in Marzipan

June


ptAU08
(Lot 20Ap)

Persipan (Apricot) in Almond Pastry

September



Animal Species-Screening (qualitative)

ptAUS1-3: 4 Samples with portions of Animal Origin (meat or dairy products) are provided. The evaluation of results is strictly qualitative with indication of the obtained agreements with the consensus values of the participants and the spiking of samples. The analytical methods are optional.


ptAUS1
(Lot 20Be)

Animal Species-Screening I – 4 Samples qualitative: Rabbit, Pork, Sheep and Goat in Meat Product (Beef)

March


ptAUS2
(Lot 20Po)

Animal Species-Screening II – 4 Samples qualitative: Donkey, Beef, Horse, Chicken and Turkey in Meat Product (Pork)

June


ptAUS3
(Lot 20Mi)

Animal Species-Screening III – 4 Samples qualitative: Buffalo, Cow's, Sheep's and Goat's Milk in Milk Product (e.g., Cheese)

August




Food Supplements and Dietetic Products



ptSU02
(Lot 20FaVi)

Food Supplement I: Vitamins A, E, D3, K1, β-Carotene and Coenzym Q10 (Ubiquinone) and Alpha Liponic Acid (enriched / high levels)

Mai


ptSU06
(Lot 20WaVi)

Dietetic-Product I: Vitamins B1, B2, B6, B12, Biotin, Vitamin C, Folic Acid , Niacin and Pantothenic Acid (enriched / low levels)

January


ptSU08
(Lot 20Elem)

Heavy Metals and Trace Elements in Food (with Caseinate Powder), approx. 20 Elements ("natural" / partly low levels)

April


ptSU09
(Lot 20WaVi)

Total Amino Acid Composition in Food

September




Cosmetic Products and Contact Materials



ptCO05
(Lot 20AnDa)

Cosmetic Products I: Zinc-Pyrithione, Piroctone Olamine and Climbazol in Anti-Dandruff Shampoo

December


ptCO06
(Lot 20UV)

Cosmetic Products II: UV-Filter in Sun Protection Product

March


ptCO07
(Lot 20Frag)

Cosmetic Products III: Allergenic Fragrances in Skin Cream

August


ptCO08
(Lot 20F)

Cosmetic Products IV: Fluoride in Toothpaste

October


DLA-No.
Please indicate!

Double Sample Material
Order of the following PT-numbers:

with PT shipment



C-2019
C-2020

Annual Certificate of all participated / passed PTs
(all parameters with z-scores or „participated“)

Period Ending or
on Request


The minimum number of participants is 10.
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Our general terms and conditions apply.
(shipment currently: € 12,50 in Germany, € 25,00 - € 35,00 into EU-Countries,25,00 – € 75,00 into non-EU/Overseas Countries)

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DLA - Dienstleistung Lebensmittel Analytik GbR
Dr. Gerhard Wichmann & Dr. Matthias Besler-Scharf
Waldemar-Bonsels-Weg 170, 22926 Ahrensburg, Germany
Tel. +49-171-1954375 Fax. +49-04102-9944976
Email: proficiency-testing@dla-lvu.de