GB/T 17139-1997
Soil quality--Determination of nickel--Flame atomic absorption spectrophotometry (English Version)

Standard No.

GB/T 17139-1997

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 17139-1997

Replace By

HJ 491-2019

Scope

This standard specifies the flame atomic absorption spectrophotometric method for the determination of nickel in soil. The detection limit of this standard (calculated on the basis of weighing 0.5g sample to digest and set the volume to 50m1) is 5mg/kg. The interference uses the 2320nm line as the absorption line, and there are three nickel lines with very close wavelength distances, which should be overcome by using a narrower spectral passband. The 232.0nm line is in the ultraviolet region, and the light scattering and molecular absorption caused by salt particles and molecular compounds are relatively serious, which will affect the measurement. Using background correction can overcome this type of interference. If the concentration permits, the method of diluting the test solution can also be used to reduce background interference.

GB/T 17139-1997 history

• 1997 GB/T 17139-1997 Soil quality--Determination of nickel--Flame atomic absorption spectrophotometry

GB/T 17139-1997 Soil quality--Determination of nickel--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.