GB/T 17136-1997: Soil quality. Determination of total mercury. Cold atomic absorption spectrophotometry

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Basic Data

Standard ID	GB/T 17136-1997 (GB/T17136-1997)
Description (Translated English)	Soil quality. Determination of total mercury. Cold atomic absorption spectrophotometry
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	Z18
Classification of International Standard	13.08
Word Count Estimation	6,689
Date of Issue	12/8/1997
Date of Implementation	5/1/1998
Summary	This standard specifies the determination of total mercury by cold vapor atomic soil absorption spectrophotometry. The detection limit of the different criteria varies depending on the instrument model, the standard minimum detection limit of 0. 005mg/kg (calculated by weighing the sample 2g). Volatile organic compounds and water vapor has absorption at 253. 7nm and interference. Volatile organic compounds in the sample digestion can remove water vapor with anhydrous calcium chloride, magnesium perchlorate removed.