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Base/Neutrals Compounds 2A - WP

Proficiency Testing Material


Nível de qualidade


ampule of 2 × 2 mL


in acetone




matrix material

temperatura de armazenamento


Descrição geral

Base/Neutrals Compounds 2A - WP proficiency testing material is produced in accordance with ISO/IEC 17043:2010. Also referred to as non-Potable Water or Water Pollution sample, this sample is manufactured according to TNI requirements. However, please note, this sample may include non-TNI analytes as well. The higher criteria from the TNI tables mimic the levels common to wastewater samples.

Supelco® is a global proficiency testing (PT) provider that manufactures best-in-class environmental and pharmaceutical PT products. Most water PT samples are available as concentrates or ready-to-use volumes giving the end-user flexibility in selecting samples that will fit their exact needs. Our WP program is designed to meet the quality assurance requirements, thereby ensuring the analytical competence of your laboratory.
These samples are typically provided in duplicate for use in case of lab mishap, for QC purposes or to analyze multiple methods.

Type of PT Scheme: Water analysis - Water Pollution (WP)

Matrix: Water Pollution/Wastewater

Analyte/s: Randomly contains a minimum 80% of the analytes listed. Values of analytes vary lot to lot.

All information regarding the use of Base/Neutrals Compounds 2A - Water Pollution (WP) proficiency testing standard can be found in the reporting packet which will be available to download at PT Portal.


Base/Neutrals Compounds 2A - Water Pollution (WP) proficiency testing material is suitable for testing Base/Neutrals compounds in water pollution/wastewater samples.

Have any questions? Explore our FAQs.
For more information on this product, please contact our PT Service Team.


2 mL

Características e benefícios

We have a vast portfolio of environmental PT schemes with "fit-for-purpose" samples to help you meet the needs of the laboratory.

Our proficiency testing (PT) program is a benchmark to:

  • provide staff with an insight into their laboratory′s performance, to verify the accuracy and reliability of their testing process
  • provide a comparison of performance with that of other laboratories, nationally and internationally
  • test and educate staff, provide a better understanding of the impact of incorrect results and identify areas where there may be problems
  • provide an independent evaluation of laboratory performance
  • demonstrate to clients, colleagues and accreditation bodies that there is a commitment to quality

Nota de preparo


  • This PT sample is packaged as a 1.5 mL concentrate.
  • The solvent for This sample is acetone.
  • The PT sample is not preserved.

Sample Preparation

  • This ampule contains a concentrate of Base/Neutral compounds in acetone.
  • When prepared according to instructions, the concentration of each analyte will be less than 200 μg/L.
  • To prepare the solution, add 1 L of reagent water to a 2-L separatory funnel.
  • Open ampule PE1268-2ML (be careful to avoid cuts on glass) and transfer exactly 1.0 mL of the concentrate to the separatory funnel.
  • Mix well.
  • The sample is now ready for analysis.
  • For calculations, assume initial sample volume was 1000 mL.

Armazenamento e estabilidade

Please refer to sample label for expiration date, specific storage temperature, and specific storage conditions.

Outras notas

Are you new to Supelco® Proficiency Testing? Be sure to register your account details in the PT Portal before placing your order.
This will provide access to data entry, reporting packets and final reports. Registrations will be approved shortly after your order is placed. For further questions, write to us at

When placing your order online, please indicate your study preference under the ′your reference′ column. Available studies can be viewed at the bottom of the page.
Click here to learn more about Quick-Turn Studies (on-demand proficiency tests that are offered depending on lot availability). The Quick-Turn results are released within 48-72 hours whereas scheduled study reports are released within 21 days.

Proficiency testing samples are presented as single blind. No values for the samples are released unti the testing period concludes.

Proficiency Testing Schedule (2022-2023)

WP22-2 March 23 - May 6, 2022
WP22-4 September 21 - November 4, 2022

WP23-2 March 22 – May 5, 2023
WP23-4 September 20 – November 3, 2023

Quick-Turn Study (on demand proficiency testthat is offered depending on lot availability)

Informações legais

Supelco is a registered trademark of Merck KGaA, Darmstadt, Germany



    1,2-Dichlorobenzene 30-150 μg/L
    1,3-Dichlorobenzene 30-150 μg/L
    1,4-Dichlorobenzene 30-150 μg/L
    Hexachlorobutadiene 50-180 μg/L
    Hexachloroethane 50-190 μg/L
    Nitrobenzene 20-190 μg/L
    1,2,4-Trichlorobenzene 35-180 μg/L
    Benzidine 200-1000 μg/L
    4-Bromodiphenyl ether 20-200 μg/L
    Butyl benzyl phthalate 50-200 μg/L
    Bis(2-chloroethoxy)methane 10-200 μg/L
    Bis(2-chloroethyl) ether 10-200 μg/L
    2-Chloronaphthalene 20-200 μg/L
    4-Chlorodiphenyl ether 25-200 μg/L
    Dibenzofuran 30-125 μg/L
    Di-n-butyl phthalate 40-180 μg/L
    3,3′-Dichlorobenzidine 60-200 μg/L
    bis(2-Ethylhexyl) phthalate (DEHP) 20-200 μg/L
    Diethyl phthalate 65-170 μg/L
    Dimethyl phthalate 100-180 μg/L
    2,4-Dinitrotoluene (2,4-DNT) 20-190 μg/L
    2,6-Dinitrotoluene (2,6-DNT) 20-190 μg/L
    Di-n-octyl phthalate 40-190 μg/L
    Hexachlorobenzene 20-190 μg/L
    Hexachlorocyclopentadiene 100-225 μg/L
    Isophorone 30-140 μg/L
    2-Methylnaphthalene (β) 30-190 μg/L
    N-Nitrosodimethylamine 75-200 μg/L
    N-Nitrosodiphenylamine 30-200 μg/L
    N-Nitrosodi-n-propylamine 30-140 μg/L
    1,2,4,5-Tetrachlorobenzene 20-190 μg/L
    2,2′-Oxybis(1-Chloropropane) 30-200 μg/L
    See All (32)

Palavra indicadora


Classificações de perigo

Aquatic Chronic 2 - Carc. 1A - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3


Respiratory system

Perigos de suplementos

Código de classe de armazenamento

3 - Flammable liquids



Ponto de fulgor (ºF)

1.4 °F - closed cup - Solvent

Ponto de fulgor (ºC)

-17 °C - closed cup - Solvent

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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