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PE1161 Supelco

Organophosphorus Pesticides - WP

Proficiency Testing Material, Concentrate for dilution to 1L

  •  NACRES NA.24



Related Categories Additional Standards, Analytical Standards, Analytical/Chromatography, Pesticide Proficiency Testing (PT), Proficiency Testing,
Quality Level   100
packaging   ampule of 1 × 2 mL
mfr. no.   RTC, PEO-257-1
concentration   in acetone
Featured Industry   Environmental
storage temp.   2-8°C


General description

This proficiency testing sample is produced in accordance with ISO/IEC 17043:2010. All information regarding the use of this material can be found in the reporting packet supplied for each sample.

Preparation Note

Randomly contains a minimum 80% of the analytes listed.

This PT sample is provided as a concentrate requiring dilution into reagent water.
The PT sample can be evaluated for each analyte listed on the report form.
If there are any analytes in the above list you wish not to be evaluated for, leave the associated line blank on the report form.
This PT sample is packaged as a 1.5 mL concentrate.
The solvent for this sample is acetone.
The PT sample is not preserved.
The sample must be stored at 4 °C.

Sample preparation
Fill a 1000 mL Class A Volumetric Flask with 900 mL of organic free reagent water.
Allow the ampule concentrate to equilibrate to room temperature.
Open the ampule and pipet exactly 1.0 mL of the concentrate into the flask
Fill to volume and mix well.
This represents the sample for analysis.
Report results in ug/L.

Other Notes

Proficiency testing samples are presented as single blind. No values for the samples are released unti the testing period concludes. Values of analytes vary lot to lot.

Proficiency Testing Schedule (2020-2021)

WP20-1 January 15 - February 28, 2020
WP20-2 March 25 - May 8, 2020
WP20-3A May 13 - June 26, 2020
WP20-3B July 8 - August 21, 2020
WP20-4 September 23 - November 6, 2020
WP20-5 November 25 - January 8, 2021

WP21-1 January 13 - February 26, 2021
WP21-3 July 7 - August 20, 2021

Quick-Turn Study - (non-scheduled proficiency test that is available at any time)



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Azinphos-methyl (Guthion) 1-50 μg/L    
Carbophenothion 1-50 μg/L    
Chlorpyrifos 1-50 μg/L    
Diazinon 1-100 μg/L    
Dichlorovos (DDVP, Dichlorovos) 1-50 μg/L    
Dimethoate 1-50 μg/L    
Dioxathion 1-50 μg/L    
Disulfoton 1-50 μg/L    
EPN 1-100 μg/L    
Ethion 1-50 μg/L    
Ethoprop 1-50 μg/L    
Famphur 1-50 μg/L    
Fonophos 1-50 μg/L    
Malathion 1-50 μg/L    
Methamidophos 0-100 μg/L    
Methyl parathion (Parathion, methyl) 1-50 μg/L    
Monocrotophos 0-100 μg/L    
Parathion, ethyl 1-50 μg/L    
Phorate 1-50 μg/L    
Phosmet (Imidan) 1-50 μg/L    
Terbufos 1-50 μg/L    
Safety & Documentation

Safety Information

Signal word 
Hazard statements 
Precautionary statements 
Target organs 
Central nervous system
Supplemental Hazard Statements 
UN1090 - class 3 - PG 2 - Acetone, solution
WGK Germany 
Flash Point(F) 
1.4 °F - closed cup - Solvent
Flash Point(C) 
-17 °C - closed cup - Solvent


Certificate of Analysis (COA)

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Protocols & Articles
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