Journal of separation science-03 March 2019

Ionic liquid vortex-simplified matrix solid-phase dispersion for the simultaneous determination of terpenoids, crocins, quinic acid derivatives and flavonoids in Gardeniae fructus by UHPLC
期刊名：Journal of separation science
文献编号：DOI 10.1002/jssc.201801354
文献地址：https://onlinelibrary.wiley.com/doi/abs/10.1002/jssc.201801354
发表日期：03 March 2019

Abstract
A novel ionic‐liquid‐based vortex‐simplified matrix solid‐phase dispersion method using 2,6‐dimethyl‐β‐cyclodextrin was established by ultra high performance liquid chromatography coupled with a photodiode array detector. 2,6‐Dimethyl‐β‐cyclodextrin was first used as a promising adsorbent in this proposed method for simultaneous determination of eight compounds in Gardeniae fructus. These compounds are terpenoids (geniposidic acid, genipin‐1‐β‐D‐gentiobioside, geniposide, 8‐o‐acetyl shanzhiside methyl ester), crocins (crocin‐I, crocin‐II), quinic acid derivatives (chlorogenic acid), and flavonoids (isoquercitrin), respectively. Several parameters were investigated in the adsorption and desorption processes to obtain the optimal conditions, including 2,6‐dimethyl‐β‐cyclodextrin as sorbent, 0.5 mL 100 mM 1‐dodecyl‐3‐methylimidazolium hydrogen sulfate as the extraction solvent, 2:1 of sample/sorbent ratio, grinding for 2 min and vortexing for 60 s. The recoveries of the eight compounds ranged from 96.6 to 100% (<3.50%). The limits of detection and quantification were in the range of 0.02–0.30 and 0.06–1.25  μg/mL, respectively. Meanwhile, a good linearity was attained with r values (>0.9997). The established method showed higher extraction efficiency and less reagent consumption than traditional matrix solid phase dispersion and ultrasonic‐assisted extraction. Hence, it could be applied for sample preparation and analysis of natural products.

Standard substances including geniposidic acid, chlorogenic acid, genipin-1-β-Dgentiobioside, geniposide, 8-o-acetyshanzhiside methyl ester, isoquercitrin, crocin I, and crocin II were purchased from Chengdu Desite Biological Technology Co., Ltd(Chengdu, China).