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Direct determination of d-panthenol and salt of pantothenic acid in cosmetic and pharmaceutical preparations by differential pulse voltammetry

✍ Scribed by Lai-Hao Wang; Shih-Wen Tseng

Book ID
108303882
Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
270 KB
Volume
432
Category
Article
ISSN
0003-2670

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Free formaldehyde in nail preparations, extracted with dichloromethane and 0.002 M hydrochloric acid (1:2 v./v.), was determined by differential pulse voltammetry(DPV) using a thin-film mercury electrode (TFME) in a basic solution. The various factors such as deposition time, concentration of mercur