Determination of nitrite additives in marketed milk powder
10.3969/j.issn.1673-4130.2015.13.015
- VernacularTitle:市售奶粉亚硝酸盐添加剂的检测?
- Author:
Yu CHEN
;
Mengfei YE
;
Chunli DING
;
Jingbo LUO
;
Lingyu YU
;
Yuanfan WANG
;
Jian WANG
;
Lihua LIU
- Publication Type:Journal Article
- Keywords:
milk powder;
nitrite;
fluorospectrophotometry;
2,3-diaminonaphthalene
- From:
International Journal of Laboratory Medicine
2015;(13):1837-1838
- CountryChina
- Language:Chinese
-
Abstract:
Objective To detect and analyse the levels of nitrite in marketed milk powder.Methods 6 brands of maketed milk powder were selected in this study.Interferents,such as protein,were removed from milk powder preliminarily by using potassium ferrocynide and zinc acetate.The levels of nitrite were detected by using fluorospectrophotometry method,and compared with na-tional standard(2 mg/kg).Results The levels of nitrite in the 6 brands of maketed milk powder were lower than the national stand-ard limit,had statistically significant differences(P <0.05).Conclusion The levels of nitrite of 6 brands of milk powders do not ex-ceed the national standard.
