WARNING: Personnel using this section should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part of GB/T 14506 specifies the method for the determination of lead content in silicate rocks. This section applies to the determination of lead in silicate rocks, and also applies to the determination of lead in soil and water system sediments. It is not suitable for gabbro with high iron content and high titanium content. Measuring range: flame atomic absorption spectrophotometry, 5μg/mL-500μg/mL lead content. Hydrochloric acid-tartaric acid-potassium iodide bottom liquid polarography method, lead content of 10μg/mL-250μg/mL.
GB/T 14506.19-2010 Referenced Document
GB/T 14506.1 Methods for chemical analysis of silicate rocks.Part 1:Determination of hygroscopic water content
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 14506.19-2010 history
2010GB/T 14506.19-2010 Methods for chemical analysis of silicate rocks.Part 19:Determination of lead content