HJ 491-2019: Soil and sediment - Determination of copper, zinc, lead, nickel and chromium - Flame atomic absorption spectrophotometry

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Scope

This Standard specifies the flame atomic absorption spectrophotometry for the
determination of copper, zinc, lead, nickel and chromium in soil and sediment.
This Standard applies to the determination of copper, zinc, lead, nickel and chromium
in soil and sediment.
When the sample volume is 0.2 g and the constant volume after digestion is 25 ml, the
method detection limits for copper, zinc, lead, nickel and chromium are 1 mg/kg, 1
mg/kg, 10 mg/kg, 3 mg/kg and 4 mg/kg, respectively, and the lower limits of
determination are 4 mg/kg, 4 mg/kg, 40 mg/kg, 12 mg/kg and 16 mg/kg, respectively.

Basic Data

Standard ID	HJ 491-2019 (HJ491-2019)
Description (Translated English)	Soil and sediment - Determination of copper, zinc, lead, nickel and chromium - Flame atomic absorption spectrophotometry
Sector / Industry	Environmental Protection Industry Standard
Classification of Chinese Standard	Z18
Classification of International Standard	13.080
Word Count Estimation	15,129
Date of Issue	2019
Date of Implementation	2019-09-01
Issuing agency(ies)	Ministry of Ecology and Environment