GB/T 17137-1997 in English

ABOLISHED

Soil quality-Determination of total chromium-Flame atomic absorption spectrophotometry

Issued on:1997-12-08
Implemented on:1998-05-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	GB/T 17137-1997
Document status:	ABOLISHED
Superseded by:	HJ 491-2009 Soil quality—Determination of total chromium—Flame atomic absorption spectrometry
Superseded on:	2009-11-01
Title in English:	Soil quality-Determination of total chromium-Flame atomic absorption spectrophotometry
Title in Chinese:	土壤质量总铬的测定火焰原子吸收分光光度法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	1997-12-08
Implemented on:	1998-05-01
ICS Classification:	13.080-Soil quality. Pedology
Chinese Classification:	Z18-Analysis methods for environmental quality of soils
Professional Classification:	GB-National Standard
Related Keywords:	total chromium-flame atomic absorption spectrophotometry scopethis standard atomic absorption soil quality-determination total chromium absorption
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《GB/T 17137-1997土壤质量总铬的测定火焰原子吸收分光光度法》由467（生态环境部）归口，主管部门为生态环境部。

Scope

This standard specifies the flame atomic absorption spectrophotometric method for the determination of total chromium 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. Interfering chromium is an element that is easy to form high-temperature-resistant oxides. Its atomization efficiency is greatly affected by the flame state and the height of the burner. It is necessary to use a rich combustibility (reduction) flame, and the best observation height is 10mm. Adding ammonium chloride can suppress the interference of coexisting ions such as iron, cobalt, nickel, vanadium, aluminum, magnesium, and lead.

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