Simultaneous quantification of three alkaloids of Coptidis Rhizoma in rat urine by high-performance liquid chromatography: application to pharmacokinetic study. 2007

Bo Tan, and Yueming Ma, and Rong Shi, and Tianming Wang
Laboratory of Pharmacokinetics, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.

A high-performance liquid chromatographic method with ultraviolet detection was established and validated for quantification of three alkaloids (coptisine, palmatine and berberine) in rat urine. Following a single-step liquid-liquid extraction, the analytes were separated on a reversed-phase C(18) column with water-formic acid-triethylamine-methanol as the mobile phase at a flow rate of 1 ml/min. The linear ranges of the calibration curves were 1.6-160 ng/ml for all three alkaloids. The lower limit of quantification was 1.6 ng/ml for all three alkaloids. The within-batch accuracy was 90.4-108.3% for coptisine, 88.6-107.8% for berberine and 88.4-110.1% for palmatine. The between-batch accuracy was 99.3-100.3% for coptisine, 94.3-100.6% for berberine and 93.7-100.0% for palmatine. The within-batch and between-batch precisions were <or=10.1% and <or=11.1%, respectively. This method is suitable to determine the three alkaloids of Coptidis Rhizoma in urine simultaneously and thus to investigate the pharmacokinetics of the alkaloids from Xiexin Decoction in rats.

UI MeSH Term Description Entries
D008297 Male Males
D010946 Plants, Medicinal Plants whose roots, leaves, seeds, bark, or other constituent parts possess therapeutic, tonic, purgative, curative or other pharmacologic attributes, when administered to man or animals. Herbs, Medicinal,Medicinal Herbs,Healing Plants,Medicinal Plants,Pharmaceutical Plants,Healing Plant,Herb, Medicinal,Medicinal Herb,Medicinal Plant,Pharmaceutical Plant,Plant, Healing,Plant, Medicinal,Plant, Pharmaceutical,Plants, Healing,Plants, Pharmaceutical
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D004365 Drugs, Chinese Herbal Chinese herbal or plant extracts which are used as drugs to treat diseases or promote general well-being. The concept does not include synthesized compounds manufactured in China. Chinese Herbal Drugs,Plant Extracts, Chinese,Chinese Drugs, Plant,Chinese Plant Extracts,Extracts, Chinese Plant,Herbal Drugs, Chinese
D005260 Female Females
D000284 Administration, Oral The giving of drugs, chemicals, or other substances by mouth. Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001599 Berberine An alkaloid from Hydrastis canadensis L., Berberidaceae. It is also found in many other plants. It is relatively toxic parenterally, but has been used orally for various parasitic and fungal infections and as antidiarrheal. Umbellatine
D001600 Berberine Alkaloids A group of related plant alkaloids that contain the BERBERINE heterocyclic ring structure. Berbines,Alkaloids, Berberine
D015203 Reproducibility of Results The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results. Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face

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