GB/T 4372.2-2014 Methods for chemical analysis of zinc oxide produced by direct process—Part 2:Determination of lead oxide content—Flame atomic absorption spectrometry method
Methods for chemical analysis of zinc oxide produced by direct process—Part 2:Determination of lead oxide content—Flame atomic absorption spectrometry method
Methods for chemical analysis of zinc oxide produced by direct process -
Part 2: Determination of lead oxide content - Flame atomic absorption spectrometry method
1 Scope
This part of GB/T 4372 specifies the methods for determining the lead oxide content of zinc oxide produced by direct process.
This part is applicable to the determination of lead oxide content of zinc oxide produced by direct process, with the determination range of 0.010%~1.00%.
2 Method summary
Dissolve the specimen with nitric acid, apply air-acetylene flame in dilute nitric acid medium, and measure the absorbance of lead at the wavelength of 283.3 nm of the atomic absorption spectrophotometer, and then calculate the lead oxide content by the standard curve method.
3 Reagents
Unless otherwise specified, only the recognized analytical reagents and distilled water or deionized water or water with equivalent purity shall be used during the analysis.
