GB/T 17138-1997
Soil quality--Determination of copper, zinc--Flame atomic absorption spectrophotometry (English Version)

Standard No.

GB/T 17138-1997

Language

Chinese, Available in English version

Release Date

1997

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Withdraw 2019-09

Latest

GB/T 17138-1997

Replace By

HJ 491-2019

Scope

This standard specifies the flame atomic absorption spectrophotometric method for the determination of copper and zinc in soil. The detection limit of this standard (calculated by weighing 0.5g sample to digest and dilute to 50ml) is: copper 1mg/kg, zinc 05mg/kg. When the iron content in the soil digestion solution is greater than 100mg/L, the absorption of zinc is inhibited, and the interference of coexisting components can be eliminated by adding lanthanum nitrate. When the salt content is high, non-characteristic absorption often occurs, which can be overcome by background correction.

GB/T 17138-1997 history

• 1997 GB/T 17138-1997 Soil quality--Determination of copper, zinc--Flame atomic absorption spectrophotometry

GB/T 17138-1997 Soil quality--Determination of copper, zinc--Flame atomic absorption spectrophotometry was changed to HJ 491-2019 Determination of copper, zinc, lead, nickel, chromium in soils and sediments by flame atomic absorption spectrophotometry.