Research Article
HPLC Method for Quantification of Caffeine and Its Three Major Metabolites in Human Plasma Using Fetal Bovine Serum Matrix to Evaluate Prenatal Drug Exposure
Figure 3
Typical calibration curves for quantification of theobromine (a), paraxanthine (b), theophylline (c), and caffeine (d) in human plasma. Theobromine (-○-), paraxanthine (-♦-), theophylline (-◊-), and caffeine (-▲-).
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(b) |
(c) |
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