A rapid procedure for the determination
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I. Pérez-Mart́inez; S. Sagrado; M.J. Medina-Hernández
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Article
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1995
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Elsevier Science
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English
⚖ 579 KB
A liquid chromatographic procedure for the determination of caffeine, theophylline and theobromine in urine samples is described. The proposed system uses a Spherisorb octadecyl-silane ODS-2 C,, analytical column and a guard column of similar characteristics. The UV detector was set at 273 nm. A stu