Sigma-Aldrich/BNAs in Soil - PT/SPE003-40G/40G

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

This sample consists of 10g of soil containing base/neutrals and acids in soil. Four samples have been provided for your convenience (multiple methods, multiple analysts, etc.) The soil has been chemically stabilized with 1mL of acetone to minimize degradation of the sample. The evaluation of the results will be based on study statistics as required be NELAC. The standard may not contain all of the compounds listed on the Report Form in accordance with NELAC standards. For analytes not detected, report a zero “0” or a “<” and your detection limit.

Sample Preparation
Extract the complete contents of a single vial.
Transfer entire contents of one vial to extraction vessel.
Rinse vial and cap with extraction solvent.
Note - Sample extracts and calibration solutions should be in the same solvent. Analyze the Extract using the appropriate Semi-Volatile Organics method for which you are seeking accreditation.

Determine the concentration of the analytes listed, and report your results on the organic analysis data sheet provided. The method used must be reported. If multiple methods are used for preparation and/or analysis, a separate report form must be used for each preparation and analysis method. Report all results on a wet weight basis, do not correct for moisture. Assume a 10g sample size for all calculations.

Safety:

Symbol 

  GHS08