Optimisation of a matrix solid-phase dispersion method for the determination of organophosphate compounds in dust samples

2007 ◽  
Vol 590 (1) ◽  
pp. 17-25 ◽  
Author(s):  
M. García ◽  
I. Rodríguez ◽  
R. Cela
Keyword(s):  
Solid Phase ◽  
Dispersion Method ◽  
Organophosphate Compounds ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion

scholarly journals A Beta/ZSM-22 Zeolites-Based-Mixed Matrix Solid-Phase Dispersion Method for the Simultaneous Extraction and Determination of Eight Compounds with Different Polarities in Viticis Fructus by High-Performance Liquid Chromatography

Molecules ◽  
2019 ◽  
Vol 24 (19) ◽  
pp. 3423 ◽  
Author(s):  
He ◽  
Li ◽  
Pang ◽  
Wang ◽  
Jin ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
High Performance ◽  
Solid Phase ◽  
Mass Ratio ◽  
Mixed Matrix ◽  
Dispersion Method ◽  
Simultaneous Extraction ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion

Viticis Fructus (VF) was named Manjingzi as a commonly used traditional Chinese medicine (TCM) targeting various pains and inflammation for more than 2000 years. To guarantee the quality of Viticis Fructus, a simple, quick and eco-friendly Beta/ZSM-22 zeolites-based-mixed matrix solid-phase dispersion method (B/Z-MMSPD) was established for simultaneous extraction and determination of eight compounds (two phenolic acids, two iridoid glycosides, vanillin and three flavonoids) with different polarities from Viticis Fructus by high performance liquid chromatography coupled with a diode array detector (HPLC-DAD). Beta and ZSM-22 were mixed as the sorbent. Water, tetrahydrofuran and methanol were blended with certain ratio as the eluent. Several parameters including types of sorbents, mass ratio of Beta to ZSM-22, mass ratio of matrix to sorbent, grinding time, types, concentration and volume of eluent were optimized. The recoveries of eight analytes were within the range of 95.0%–105% (RSDs ≤ 4.13%). The limits of detection and limits of quantitation ranged from 0.5 to 5.5 μg/g and from 1.5 to 16 μg/g, respectively. Compared to the traditional extract methods, it was a simple, rapid, efficient and green method. The results demonstrated that a simple, rapid, efficient and green B/Z-MMSPD was developed for the simultaneous extraction and determination of eight target analytes with different polarities for quality control of Viticis Fructus.

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