High Performance Liquid Chromatographic Analysis of Typical Ultraviolet Absorbers in Cosmetic Products
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HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC DETERMINATION OF THEOPHYLLINE IN HUMAN SERUM
A simple, rapid and sensitive HPLC method for the determination of theophylline (T) in human serum has been developed. An isocratic system consisting of a /-l Bondapak C18 column, mobile phase of methanol, phosphate buffer (22:78, pH=4.5), and a flow rate of 1.4 mL/min was used. The eluent was detected by UV at 275 nm at room temperature. 8-Chlorotheophylline (8-CT) was used as an internal ...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1991
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.111.9_542