219-150-5

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Determination of kojic acid in a skin-whitening cosmetic by high-performance liquid chromatography coupled with ultraviolet detection after pre-column derivatization with 4-fluoro-7-nitro-2,1,3-benzoxadiazole.

Yasuhiko Higashi et al.

Journal of cosmetic science, 63(3), 205-212 (2012-12-01)

Various methods for the determination of kojic acid (KA), a skin-whitening agent, have been reported by high-performance liquid chromatography (HPLC). In this study, the concentration of KA in a skin-whitening cosmetic was analyzed by HPLC with ultraviolet detection (380 nm)

Genetic and environmental factors associated with vitamin B12 status in Amazonian children.

Fernanda Cobayashi et al.

Public health nutrition, 18(12), 2202-2210 (2015-01-17)

To evaluate the prevalence of vitamin B12 deficiency and factors associated with vitamin B12 status in Amazonian children. Genetic risk score (GRS), socio-economic and nutritional status, and morbidity data were the independent variables used in multiple linear regression models to

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