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Updated: Jun 4, 2026

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
Published on: September 1, 2017
[Investigation on the homogeneity and stability of quality controlling cosmetic samples containing arsenic]
Bing Dong1, Yu Song, Wenjia Fan
1Institute for Environmental Hygiene and Health Related Product Safety, Chinese Center for Disease Control and Prevention, Beijing 100021, China.
Objective:
To study the homogeneity and stability of arsenic in quality controlling cosmetic samples.
Methods:
Arsenic was determined by atomic fluorescence spectrophotometric method. The t-test and F-test were used to evaluate the significant difference of the within-bottle and between-bottle results with three batches. The RSDs of arsenic obtained in different time were compared with the relative expanding uncertainties to evaluate the stability.
Results:
Average and variance of within-bottle and between-bottle results of arsenic were not different significantly. The RSDs of Arsenic were less than the relative expanding uncertainties.
Conclusion:
Quality controlling cosmetic samples containing arsenic were considered homogeneous and stable.

