Sigma Aldrich Trace Metals (Dissolved) PT - 2 20 ML

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Rp. 1,225,000
Katalog PE1005-20ML
Brand Sigma Aldrich
Kondisi New

Harga dan Ketersediaan

Katalog PE1005-20ML
Ukuran 20 ML
Ketersedian Hubungi Kami
Harga Rp. 1,225,000


Related CategoriesAdditional StandardsAnalytical Standards,Analytical/ChromatographyProficiency TestingWater Pollution/Waste Water Inorganics.
packaging  ampule of 1 × 20 mL
mfr. no.  RTC, PEI-430-2
concentration  in nitric acid


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 (2018-2019)

WP18-1 January 17 - March 2, 2018
WP18-2 March 28 - May 11, 2018
WP18-3A May 16 - June 29, 2018
WP18-3B July 11 - August 24, 2018
WP18-4 September 26 - November 9, 2018
WP18-5 November 21 - January 4, 2019 

WP19-1 January 16 - March 1, 2019
WP19-2 March 27 - May 10, 2019
WP19-3A May 15 - June 28, 2019
WP19-3B July 10 - August 23, 2019
WP19-4 September 25 - November 8, 2019
WP19-5 November 20 - January 3, 2020

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

Preparation Note

This PT sample is packaged as a 20mL concentrate. 
Definition of a dissolved metal: Those metals in an unacidified sample that pass through a 0.45-?m membrane filter. 
The solvent for this sample is 1% nitric acid by volume in DI water. The sample is slightly acidified to maintain stability in the concentrate and will not interfere with the method. Please follow preparations directions for best performance. 
The PT sample has not been preserved. 

Sample Preparation
To prepare solution, partially fill a 1000-mL volumetric flask with reagent-grade water (near 20ºC). 
Shake ampule well prior to opening. 
Open ampule PEI-430-2 (be careful to avoid cuts on glass) and transfer 10.0 mL of concentrate to the volumetric flask. 
Fill the flask to volume with reagent-grade water and mix well. 
The sample is now ready for immediate analysis. Please not that the sample has not been acidified, you will need to acidify as required by your method after filtration. 
A reagent-grade blank should be analyzed concurrently for background correction. The water blank should be made to match the acid matrix of the standards and samples.


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