GB/T 9730-2007
Chemical reagent.General method for the determination of oxalates (English Version)

Standard No.

GB/T 9730-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

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

Latest

GB/T 9730-2007

Replace

GB/T 9730-1988

Scope

This standard specifies the general method for converting oxalate into azo compound and determining it by colorimetry. This standard applies to the determination of trace oxalate in organic reagents. The detection range of spectrophotometry is 1 μg/mL～20 μg/mL (calculated as C₂O₄), and the detection range of visual colorimetry is 0.4 μg/mL～20 μg/mL (calculated as C₂O₄). C₂O₄ count).

GB/T 9730-2007 Referenced Document

• GB/T 602 Chemical reagent--Preparations of standard solutions for impurity
• GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
• GB/T 6682 Water for analytical laboratory use.Specification and test methods*， 2008-05-15 Update
• GB/T 9721 chemical reagent General rules for the molecular absorption spectrophotometry (ultraviolet and visible)

GB/T 9730-2007 history

• 2007 GB/T 9730-2007 Chemical reagent.General method for the determination of oxalates
• 1988 GB/T 9730-1988 Chemical reagent--General method for the determination of oxalates