This part of ISO 11212 specifies a method for the determination of the mercury content of starch, including derivatives and by-products, by atomic absorption spectrometry with cold-vapour generation. The cold-vapour generators currently available use very different techniques; it is thus impossible to propose a comprehensive method likely to ensure the attainment of satisfactory results on all types of apparatus. Each analyst should therefore optimize the conditions of use of his/her own apparatus on the basis of general or particular instructions.
Tämän julkaisun valmistelusta Suomessa vastaa SFS Suomen Standardit, puh. 09 149 9331.
Sisällysluettelo
Foreword
1 Scope
2 Definition
3 Principle
4 Reagents
5 Apparatus
6 Procedure
6.1 Preparation of test sample
6.2 Digestion
6.3 Blank test
6.4 Determination of the calibration curve
6.5 Determination
7 Expression of results
8 Precision
8.1 Repeatability
8.2 Reproducibility
9 Test report
Annex A Results of interlaboratory test (informative)