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PE1054 Supelco

Total Cyanide - WP

Proficiency Testing Material, Concentrate for dilution to 1L

  •  NACRES NA.24

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Properties

Related Categories Additional Standards, Analytical Standards, Analytical/Chromatography, DMRQA PTs, Proficiency Testing,
Quality Level   100
grade   certified reference material
packaging   ampule of 1 × 2 mL
mfr. no.   RTC, PEI-031
concentration   in potassium hydroxide solution
Featured Industry   Environmental

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.

Preparation Note

This PT sample is as a 2mL concentrate.
The solvent for this sample is 1% NaOH in water.
The PT sample has not been preserved.

Sample Preparation

Partially fill a 1000mL volumetric flask with reagent-grade water (near 20ºC) and add 1mL of 1N NaOH.
Open ampule PE1054-2ML (be careful to avoid cuts on glass) and transfer 1.0mL of concentrate to the volumetric flask.
Fill the volumetric flask to volume with reagent-grade water and mix well.
The sample is now ready for immediate analysis.
A blank reagent-grade water sample should be analyzed concurrently for background correction. Remember to match the NaOH matrix of the sample.
NOTES: Keep the ampule shielded from ultraviolet radiation. Direct exposure to sunlight or any source of U.V. radiation may cause significant change in concentration. The specified addition of 1mL of 1N NaOH is only a recommended minimum to prevent the loss of cyanide. If another amount, or even another base (such as KOH) is part of the analysts “normal routine” , it is his/her option to change the recommendation.

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 (2020-2021)

Wastewater
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
WP21-2 March 24 - May 7, 2021
WP21-3 July 7 - August 20, 2021
WP21-4 September 22 - November 5, 2021

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

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Description

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Total cyanide .1-1 mg/L    
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 2
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles
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