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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Certified Reference Material for Determination of Total Cyanide in Soil [BAM-U116/CGL306]
Author(s)
Sebastian Recknagel1, Holger Scharf1, Batzorig Lkhagvasuren2, Oyuntungalag Urjin2 and Juergen Rausch3
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DOI:10.17265/2162-5263/2018.04.004
Affiliation(s)
1. Department of Analytical Chemistry, Federal Institute for Materials Research and Testing, Berlin 12205, Germany
2. Department of Reference Material and Proficiency Testing Section, Central Geological Laboratory, Ulaanbaatar 18080, Mongolia
3. Department of Groundwater Resources-Quality and Dynamics, Federal Institute for Geosciences and Natural Resources, Hannover 30655, Germany
ABSTRACT
CRM (Certified Reference Material) BAM-U116/CGL306 “Cyanide in
soil” was produced within a framework of cooperation between CGL (Central
Geological Laboratory) of Mongolia and Federal Institute for Materials
Research and Testing (BAM) of Germany in 2013-2017. The CRM
BAM-U116/CGL306 represents a mixture of a sandy soil collected from a
contaminated former gasworks area in the Berlin region (Germany) and an
unpolluted sandy soil from Nalaikh region (Mongolia). The bulk candidate
material for this reference material was prepared at CGL CRM Laboratory
exclusively destined to the preparation of reference materials and equipped
with modern technical equipment. Homogeneity, stability and shelf life were
studied in full compliance with ISO Guide 35. The CRM was evaluated as
sufficiently homogeneous. Statistical evaluation of certification analysis was
software packages SoftCRM and ProLab
Plus. Certified value of total cyanide of the CRM is 12.0 mg/kg and expanded
uncertainty was assigned as 0.8 mg/kg. The intended purpose of this material is
the verification of analytical results obtained for the mass fraction of total
cyanide in soils and soil-like materials applying the standardized procedure
ISO 11262:2011. As any reference material, it can also be used for routine
performance checks (quality control charts) or validation studies.
KEYWORDS
CRM, cyanide in soil, total cyanide.
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