Simple method for the determination of trace levels of pesticides in honeybees using matrix solid-phase dispersion and gas chromatography

2002 ◽  
Vol 982 (2) ◽  
pp. 267-273 ◽  
Author(s):  
Bozena Morzycka
Keyword(s):  
Gas Chromatography ◽  
Solid Phase ◽  
Simple Method ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion

Vortex-homogenized matrix solid-phase dispersion coupled with gas chromatography – electron-capture negative-ion mass spectrometry to determine halogenated phenolic compounds in seafood

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 96510-96517 ◽  
Author(s):  
Jhih-Ming Chen ◽  
Chun-Chuan Yang ◽  
Wu-Hsun Chung ◽  
Wang-Hsien Ding
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Phenolic Compounds ◽  
Electron Capture ◽  
Solid Phase ◽  
Negative Ion ◽  
Simple Method ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Negative Ion Mass Spectrometry

This work represents the development of vortex-homogenized matrix solid-phase dispersion (VH-MSPD) as an effective and simple method to rapidly extract halogenated phenolic compounds in marketed seafood samples.

scholarly journals Multiresidue Determination of Pesticides in Honey by Matrix Solid-Phase Dispersion and Gas Chromatography with Electron-Capture Detection

2001 ◽  
Vol 84 (4) ◽  
pp. 1165-1171 ◽  
Author(s):  
Beatriz Albero ◽  
Consuelo Sánchez-Brunete ◽  
José L Tadeo
Keyword(s):  
Gas Chromatography ◽  
Electron Capture ◽  
Solid Phase ◽  
Organophosphorus Compounds ◽  
Organophosphorus Pesticides ◽  
Electron Capture Detection ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Relative Standard

Abstract A multiresidue method was developed for the determination of 15 pesticides (organochlorines, organophosphorus compounds, pyrethroids, and other acaricides) in various commercial honeys (eucalyptus, lavender, orange, rosemary, and multifloral). The analytical procedure is based on the matrix solid-phase dispersion of honey in a mixture of Florisil and anhydrous sodium sulfate; the mixture is placed in small plastic columns and extracted with hexane–ethyl acetate (90 + 10, v/v). The pesticide residues are determined by capillary gas chromatography with electron-capture detection. Recoveries with the method at concentrations between 0.15 and 1.5 μg/g ranged from 80 to 113%, and relative standard deviations were <10% for all the pesticides studied. The pesticide detection limits were within the range 0.5–5 mg/kg for organochlorines, around 3 μg/kg for the chlorinated organophosphorus pesticides studied, near 15 μg/kg for fluvalinate, and about 3 μg/kg for the other pyrethroids.

scholarly journals Determination of Multiclass Pesticide Residues in Apple Juice by Gas Chromatography-Mass Selective Detection after Extraction by Matrix Solid-Phase Dispersion

2004 ◽  
Vol 87 (4) ◽  
pp. 972-985 ◽  
Author(s):  
Xiaozhong Hu ◽  
Yu Jianxin ◽  
Yan Zhigang ◽  
Ni Lansun ◽  
Lin Yanfei ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Apple Juice ◽  
Solid Phase ◽  
Single Injection ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Determination Procedure ◽  
Coefficients Of Variation ◽  
Glass Column

Abstract A multiresidue method is described for the analysis of 106 multiclass pesticides (organochlorine, organophosphate, carbamate, pyrethroid, and triazine classes) in apple juice in a single injection. The determination procedure was based on matrix solid-phase dispersion of juice on diatomaceous earth in a glass column and subsequent extraction with a mixture of hexane–dichloromethane (1 + 1) at a flow rate of 5 mL/min. The analytes were determined by capillary gas chromatography with mass spectrometric detection and confirmed by their retention times and ion ratios. The coefficients of variation for analysis of samples fortified over the range of 0.01–0.2 mg/kg were 1.62 to 18.4%, and the recoveries for all analytes were between 70 and 110%.

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