Determination of Nitrite in Cosmetics / 环境与健康杂志
Journal of Environment and Health
;
(12): 111-112, 2001.
Artigo
em Chinês
| WPRIM
| ID: wpr-411082
ABSTRACT
Objective To explore the application of naphthyl ethylenediamine method for determination of nitrite in cosmetics. Methods The concentrations of nitrite in cosmetics were determined by hydrochloric acid-naphthylethylenediamine method. The experiments on working curve, precision and recovery rate were carried out. Results In the range of 0~12. 5 μg/50 ml nitrite,the correlation coefficient r value,recovery rate and relative standard deviation was 0. 9996,97. 7%~100. 2% and 2.35%~4. 51% respectively. Conclusion This method for determination of nitrite by hydrochloric acid and naphthyl ethylenediamine was simple,quick and accurate.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Journal of Environment and Health
Ano de publicação:
2001
Tipo de documento:
Artigo
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