Sigma-Aldrich/Chlorinated Pesticides in Soil - PT/SPE009-50G/50G

•  EC Number 238-878-4

Properties:

Description:

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.

Other Notes

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

Proficiency Testing Schedule (2017-2018)

Soils
LPTP17-S1 February 1 - March 17, 2017
LPTP17-S2 April 12 - May 26, 2017
LPTP17-S3 July 26 - September 8, 2017
LPTP17-S4 October 11 - November 24, 2017

LPTP18-S1 January 31 - March 16, 2018
LPTP18-S2 April 11 - May 25, 2018
LPTP18-S3 July 25 - September 7, 2018
LPTP18-S4 October 10 - November 23, 2018

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

Preparation Note

The PT sample size provided is 50 g of soil. The soil has been sterilized to minimize degradation of the sample. The PT sample has been sized to 100 mesh. Required storage condition is 4o C. The evaluation of results will be based on study statistics as required by NELAC. This PT sample contains extractable pesticide organics within a concentration range of 50 - 500 μg/Kg. The sample has been intentionally prepared with an apparent headspace.

Sample Preparation
Mix Prior to use. Recommended minimum sampling size is 1 gram. Analyze the sample using the preparatory and determinative method(s) for which you are seeking accreditation.
Note: Sample extracts and calibration solutions should be in the same solvent. Determination of the percent moisture content of the sample is required.
The method must be reported. If multiple methods are used for preparation and/or analysis report on a separate form for each method. Report on a dry weight basis.

Safety:

Symbol 

  GHS08