Drug Res (Stuttg) 2015; 65(3): 147-152
DOI: 10.1055/s-0034-1374635
Original Article
© Georg Thieme Verlag KG Stuttgart · New York

A Simple HPLC Method with Fluorescence Detection for Simultaneous Determination of 10-methoxycamptothecin and its Metabolite 10-hydroxycamptothecin in Rat Liver Tissue

Y. Liu
1  Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Harbin, China
2  Heilongjiang Entry-Exit Inspection and Quarantine Bureau, Harbin, China
,
C. Shao
1  Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Harbin, China
,
B. Fan
1  Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Harbin, China
,
S. Li
3  Jiangsu Food & Pharmaceutical Science College, Huaian, China
,
Y. Wang
1  Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Harbin, China
,
J. Zheng
1  Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Harbin, China
› Author Affiliations
Further Information

Publication History

received 19 December 2013

accepted 07 April 2014

Publication Date:
29 April 2014 (online)

Abstract

A simple HPLC method to determine the amount of 10-methoxycamptothecin (MCPT) and its major metabolite 10-hydroxycamptothecin (HCPT) in rat liver tissue was developed in the present study. Camptothecin (CPT) was used as internal standard (IS). A piecewise linear function was used over lower and higher concentrations, respectively. The calibration curves were linear (r 2 >0.99) over concentrations from 2.5 to 20 ng/mL and 20 to 320 ng/mL for both MCPT and HCPT. The method had an accuracy of 92.74% to 112.76%, and the intra- and inter-day precision (RSD%) were 11.85% or less for MCPT and HCPT. The stability data showed no significant degradation occurred under the experimental conditions. This method was successfully applied to the tissue distribution study of MCPT and its metabolite HCPT in liver tissue samples after intravenous administration.