Specifies a method for the extraction of heavy metals and metalloids from soil using aqua regia. Analytical techniques appropriate to the analyte content in the soil are used for the subsequent determination of heavy metals and metalloids in the resulting solution.
Table of contents
Header
About this publication
PREFACE
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
4 PRINCIPLE
5 APPARATUS
5.1 Volumetric glassware
5.2 Reaction vessel
5.3 Anti-bumping granules/glass beads
5.4 Hotplate
5.5 Filter papers
5.6 Analytical balance
6 REAGENTS
6.1 General
6.2 Hydrochloric acid (ρ20 1.18 g/mL)
6.3 Nitric acid (ρ20 1.42 g/mL)
6.4 Nitric acid (5% v/v)
6.5 Nitric acid (1% v/v)
6.6 Aqua regia solution
7 PROCEDURE
7.1 Blank test
7.2 Quality control
7.2.1 General
7.2.2 Duplicate sample
7.2.3 Quality control sample
7.3 Acid extraction
8 PRECISION
9 TEST REPORT
Cited references in this standard
Content history
DR 97104
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