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Determination of Phenol and L-Menthol in Glycerin Zhiyang Lotions by GC / 中国药师
China Pharmacist ; (12): 1815-1817, 2014.
Artigo em Chinês | WPRIM | ID: wpr-460098
ABSTRACT

Objective:

To establish a GC method for the determination of phenol and L-menthol in glycerin Zhiyang lotions. Meth-odsA Zebron ZB-WAX(0. 32 mm × 30. 0 m,0. 50 μm) capillary column was used with an FID detector. The column temperature was 60℃, maintained for 1 min, and then raised to 160℃ at the rate of 8℃·min-1 , and maintained 10 minutes. The inlet tempera-ture was 180℃, the detector temperature was 300℃, and the carrier gas was nitrogen.

Results:

The linear range of phenol and L-men-thol was 0. 5-10. 0 mg·ml-1(r=0. 999 9) and 0. 25-5. 0 mg·ml-1(r=0. 999 9), respectively. The average recovery of phenol and L-menthol was 99. 01%(RSD=0. 90%,n=9)and 99. 70%(RSD=0. 98%,n=9), respectively.

Conclusion:

The method is sim-ple, accurate and reliable, and can be used to determine the concentration of phenol and L-menthol in glycerin Zhiyang lotions.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: China Pharmacist Ano de publicação: 2014 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: China Pharmacist Ano de publicação: 2014 Tipo de documento: Artigo