BASE/NEUTRALS COMPOUNDS 2A - WP

Description_x000D_ General description_x000D_ 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._x000D_ Preparation Note_x000D_ Randomly contains a minimum 80% of the analytes listed._x000D_ This PT sample is packaged as a 1.5 mL concentrate._x000D_ The solvent for This sample is acetone._x000D_ The PT sample is not preserved._x000D_ Matrix Modifier_x000D_ MMW-001 is intended to modify the products to simulate a waste water sample._x000D_ The final dilution will replace the use of DI (Reagent Grade) water for the prepartion of the appropriate CRM/QC sample._x000D_ The sample will add turbidity and TSS to the final volume._x000D_ These do not affect the properties of the analytes of interest in the final sample if prepared according to instructions._x000D_ Note filtration may be necessary as required by your method._x000D_ Sample preparation_x000D_ This ampule contains a concentrate of Base/Neutral compounds in acetone._x000D_ When prepared according to instructions, the concentration of each analyte will be less than 200 ug/L._x000D_ To prepare solution, add 1 liter of reagent water to a 2-L separatory funnel._x000D_ Open ampule PE1268-2ML (be careful to avoid cuts on glass) and transfer exactly 1.0mL of the concentrate to the separatory funnel._x000D_ Mix well._x000D_ The sample is now ready for analysis._x000D_ For calculations, assume initial sample volume was 1000 mL._x000D_ To use the matrix modifier simply mix Waste Water Matrix Modifier as specified in the MMW-001 instructions. Use this solution in place of the reagent grade water in the instructions above._x000D_ Other Notes_x000D_ 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._x000D_ Proficiency Testing Schedule (2020-2021)_x000D_ Wastewater_x000D_ WP20-1 January 15 - February 28, 2020_x000D_ WP20-2 March 25 - May 8, 2020_x000D_ WP20-3A May 13 - June 26, 2020_x000D_ WP20-3B July 8 - August 21, 2020_x000D_ WP20-4 September 23 - November 6, 2020_x000D_ WP20-5 November 25 - January 8, 2021_x000D_ WP21-1 January 13 - February 26, 2021_x000D_ WP21-2 March 24 - May 7, 2021_x000D_ WP21-3 July 7 - August 20, 2021_x000D_ WP21-4 September 22 - November 5, 2021_x000D_ Quick-Turn Study - (non-scheduled proficiency test that is available at any time)