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BS ISO 24384:2024

$142.49

Water quality. Determination of chromium(VI) and chromium(III) in water. Method using liquid chromatography with inductively coupled plasma mass spectrometry (LC-ICP-MS) after chelating pretreatment

Published By Publication Date Number of Pages
BSI 2024 28
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
10 5 Interferences
5.1 General
5.2 Samples
5.3 Sample storage and sample preparation
5.4 Chelating pretreatment
5.5 LC-ICP-MS measurements
11 6 Reagents and standards
13 7 Apparatus
14 8 Sampling, preservation and storage of samples
15 9 Procedure
9.1 Sample preparation
9.1.1 pH-adjustment of water sample
9.1.2 Chelating pretreatment
9.2 Optimization of operating condition for LC-ICP-MS
16 9.3 Identification of Cr(VI) and Cr(III) on LC-ICP-MS
9.4 Blank value measurements
10 Calibration
10.1 General requirements
17 10.2 Calibration covering the total procedure
18 10.3 Recovery test of target substances
11 Calculation
11.1 Use of the calibration curve to determine the result
11.2 Calculation of results after calibration
19 11.3 Treatment of results lying outside the calibration range
12 Expression of results
13 Test report
20 Annex A (informative) Example of an operating condition of LC-ICP-MS and chromatogram of Cr(VI) and Cr(III) in the case of PDCA-chelating pretreatment
22 Annex B (informative) Example of operating condition of LC-ICP-MS and chromatograms of Cr(VI) and Cr(III) in the case of EDTA-chelating pretreatment
24 Annex C (informative) Performance data
26 Bibliography
BS ISO 24384:2024
$142.49