GB/T 23834.4-2009Chemical analysis method for stannous sulfate - Part 4: Determination of lead and copper content - Flame atomic absorption spectrometry (English PDF)

1 Scope

This section provides sulfite tin Determination of lead, copper content - Flame atomic absorption spectrophotometric analysis of the principle of safety

Tips, general provisions, Determination of lead content, copper content.

This section applies to the determination of lead stannous, copper content of sulfuric acid. Measurement range. 0.003% to 0.05% Pb; ~ 0.001% copper

0.05%.

2 Normative references

The following documents contain provisions which, through reference GB/T 23834 in this section constitute provisions of this section. For dated reference documents

Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section

Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

Preparation of standard solution of GB/T 602 chemical reagent determination of impurities (GB/T 602-2002, ISO 6353-1. 1982, NEQ)

GB/T 603 chemical reagent test methods in the formulation and preparation of products (GB/T 603-2002, ISO 6353-1 with. 1982,

NEQ)

GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)

Preparation of HG/T 3696.2 inorganic chemical products, chemical analysis of impurity standard solution

Preparations of HG/T 3696.3 inorganic chemical products, chemical analysis

3 PRINCIPLE OF THE METHOD

Under acidic conditions The sample is dissolved by the sample to be tested in a flame into the ion atomic vapor, the ground state of atomic vapor absorption

Receive resonance light emitted from the light source portion, through which the light intensity of atomic vapor width follow Lambert Beer's law. In this measurement sample

The measured ion concentration.

4 Safety Tips

Reagents used in this test method are toxic or corrosive, be careful when operating! As splashed on the skin or eyes should stand

That is rinsed with water, severe cases should be treated immediately.

5 General Provisions

This standard reagents and water, did not indicate when the other requirements, refer to analytically pure reagents and GB/T 6682-2008 stipulated II Grade water. Impurities used in the test standard solution, preparations and products, did not indicate when the other requirements, according to GB/T 602, GB/T 603 or

HG/T 3696.2, the provisions of HG/T 3696.3 of preparation.

6 Determination of lead content