Phytochemical Characterization for Quality Control of Phyllostachys pubescens Leaves Using High-Performance Liquid Chromatography Coupled with Diode Array Detector and Tandem Mass Detector

Phyllostachys pubescens leaves are cultivated in a number of Asian countries and have been used for antipyretic and diuretic effects since ancient times, especially in Korea. The purpose of this study was to develop and validate of analytical method for quality control of P. pubescens leaves using high-performance liquid chromatography with diode array detector (HPLC-DAD) and liquid chromatography with tandem mass spectrometry (LC-MS/MS) detection. HPLC-DAD analysis was conducted with a Gemini C-18 column, and distilled water-acetonitrile (both with 0.1% (v/v) formic acid) mobile-phase system. For the LC-MS/MS analysis, all markers were separated with a Waters ACQUITY UPLC BEH C-18 column and gradient flow system of distilled water containing 0.1% (v/v) formic acid and 5 mM ammonium formate-acetonitrile. In both method, major components were detected at 2.13-11.63 mg/g (HPLC-DAD) and 0.12-19.20 mg/g (LC-MS/MS). These methods were validated with respect to linearity (coefficient of determination >0.99), recovery (95.22-118.81%), accuracy (90.52-116.96), and precision (<4.0%), and were successfully applied for the quantitative analysis of P. pubescens leaves.