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  • The certification of the contents (amount of substance contents and mass fractions) of nitrate in simulated freshwater : Low content CRM 479 : High content CRM 480

Abstract

This report describes the preparation of two simulated freshwater reference materials (one with a low mineral content, CRM 479, the other with a high mineral content, CRM 480) and studies of their homogeneity and stability, as well as the analytical work carried out for their certification. The report contains all the results and the details of methods used to certify the amount of substance contents and the mass fractions of nitrate in the CRM 479 (214 +/- 4 micro-mol/kg or 13.3 +/- 0.3 mg/kg) and the CRM 480 (885 +/- 13 micro-mol/kg or 54.9 +/- 0.8 mg/kg).

Additional information

Authors: QUEVAUVILLER P, European Commission, Bruxelles (BE);VALCARCEL M, Universidad de Córdoba, Depto. de Química Analítica (ES)
Bibliographic Reference: EUR 16137 EN (1995) 27 pp., MF, ECU 4
Availability: (2)
Record Number: 199510349 / Last updated on: 1995-03-21
Category: PUBLICATION
Original language: en
Available languages: en