Foreword
1 Scope
2 Normative references
3 Principle
3.1 Preparation of the test solution
3.2 Instrumental techniques
3.2.1 Flame atomic absorption spectrometry (FAAS)
3.2.2 Inductively coupled plasma emission
spectrometry (ICP-ES)
4 Apparatus
4.1 General
4.2 Volumetric glassware
4.3 Filtration system
4.4 Instruments
4.4.1 Flame atomic absorption spectrometer
4.4.2 Inductively coupled plasma emission
spectrometer
5 Reagents
5.1 General
5.2 Nitric acid (HNO[3])
5.2.1 Concentrated nitric acid
5.2.2 Nitric acid 1:1 (V/V)
5.2.3 Nitric acid 1:2 (V/V)
5.3 Hydrochloric acid (HCI)
5.3.1 Concentrated hydrochloric acid
5.3.2 Hydrochloric acid 1:1 (V/V)
5.4 Ammonia solution
5.5 Pure lead
5.6 Manganese nitrate solution
5.7 Potassium permanganate solution
5.8 Standard solutions
5.8.1 Standard solutions (1 g/l)
5.8.2 Standard solutions (100 mg/l)
5.8.3 Standard solutions (10 mg/l)
5.8.4 Multi-element solutions (either 10 mg/l or
100 mg/l)
6 Sampling and sample preparation
7 Procedure
7.1 Preparation of the test solution
7.1.1 Dissolution
7.1.2 Co-precipitation with manganese dioxide
7.1.3 Test solution
7.2 Preparation of the synthetic test solution
7.3 Preparation of the blank test solution
7.4 Preparation of the calibration solutions
8 Determination of elements by FAAS
8.1 General
8.2 Calibration and measurement of the test solution
8.3 Expression of results
8.3.1 Analyte recovery rate
8.3.2 Analyte content in the sample
9 Determination of elements by ICP-ES
9.1 General
9.2 Calibration and measurement of the test solution
9.3 Expression of results
9.3.1 Analyte recovery rate
9.3.2 Analyte content in the sample
10 Test report
Bibliography