GB/T 8449-1987: Method for determination of lead in food additives

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Scope

After the sample is treated, add ammonium citrate, potassium cyanide, hydroxylamine
hydrochloride to eliminate the interference of iron, copper, zinc and other ions. At pH
8.5 ~ 9.0, lead ions and dithizone form a red complex, which is extracted with
chloroform and compared with the standard series for limit test or quantitative test.

Basic Data

Standard ID	GB/T 8449-1987 (GB/T8449-1987)
Description (Translated English)	Method for determination of lead in food additives
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	C54
Word Count Estimation	3,310
Date of Issue	9/22/1987
Date of Implementation	7/1/1988