scholarly journals The Use of Solid Phase Extraction for Pesticide Residue Analysis of Crops

1991 ◽  
Vol 16 (2) ◽  
pp. 247-255 ◽  
Author(s):  
Yoshitsugu ODANAKA ◽  
Naomi TOMIYAMA ◽  
Yukiko KOMA ◽  
Osami MATANO ◽  
Shinko GOTO
Keyword(s):  
Solid Phase Extraction ◽  
Pesticide Residue ◽  
Solid Phase ◽  
Residue Analysis ◽  
Phase Extraction ◽  
Pesticide Residue Analysis

scholarly journals Pesticide Residue Analysis of a Dietary Ingredient by Gas Chromatography/Selected-Ion Monitoring Mass Spectrometry Using Neutral Alumina Solid-Phase Extraction Cleanup

2008 ◽  
Vol 91 (3) ◽  
pp. 630-636 ◽  
Author(s):  
Mijeong Lee Jeong ◽  
Michael Zahn ◽  
Thao Trinh ◽  
Fay A Brooke ◽  
Wenwen Ma
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Solid Phase Extraction ◽  
Pesticide Residue ◽  
Solid Phase ◽  
Organophosphorus Pesticides ◽  
Residue Analysis ◽  
Phase Extraction ◽  
Pesticide Residue Analysis ◽  
Neutral Alumina

Abstract A sample cleanup procedure has been developed to remove coextractives that interfere with pesticide residue analysis of a dietary ingredient (Product B), an extract consisting of Scutellaria baicalensis and Acacia catechu. Samples were extracted using 1 acetic acid in acetonitrile, followed by solid-phase extraction and analysis by capillary gas chromatography with mass spectrometry in the selective-ion monitoring mode. Neutral alumina (alumina N) was found to be the most effective sorbent to remove coextractives from Product B; other materials that were tested but failed to remove interference were graphitized carbon black/primary-secondary amine (PSA), octadecylsilane (C18), Florisil, Oasis MCX, and strong anion exchange-PSA. The method was specifically developed for Product B, which was spiked with 41 organochlorine and organophosphorus pesticides, and resulted in the recovery of 80 to 120 at U.S. Pharmacopeia limits (0.06 to 4 g/g) for the majority of the pesticides.

Development of an analytical method for pesticide residues in berries with dispersive solid phase extraction using multiwalled carbon nanotubes and primary secondary amine sorbents

2018 ◽  
Vol 10 (7) ◽  
pp. 757-766 ◽  
Author(s):  
Pengyue Zhao ◽  
Pedro J. J. Alvarez ◽  
Xuesheng Li ◽  
Canping Pan
Keyword(s):  
Carbon Nanotubes ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Residue Analysis ◽  
Phase Extraction ◽  
Pesticide Residue Analysis ◽  
Dispersive Solid Phase Extraction ◽  
Multiwalled Carbon ◽  
Primary Secondary Amine ◽  
Dispersive Spe

A dispersive SPE with PSA and MWCNTs as sorbent material was developed for pesticide residue analysis in berry samples.

scholarly journals Determination of Flumorph Residues in Vegetables, Soil, and Natural Water by Solid-Phase Extraction Cleanup and High-Performance Liquid Chromatography with UV Detection

2008 ◽  
Vol 91 (6) ◽  
pp. 1459-1466 ◽  
Author(s):  
Ji-Ye Hu ◽  
Yu-Chao Zhang ◽  
Hai Yan
Keyword(s):  
Solid Phase Extraction ◽  
Natural Water ◽  
High Performance ◽  
Solid Phase ◽  
Residue Analysis ◽  
Reversed Phase ◽  
Uv Detection ◽  
Phase Extraction ◽  
Limit Of Quantification

Abstract A method for high-performance liquid chromatographic (HPLC) determination of flumorph residues in cucumber, tomato, soil, and natural water was developed and validated. Primary secondary amine or octadecylsilyl (C18) solid-phase extraction cartridges were used for sample preparation. Reversed-phase HPLC with UV detection was used for separation and quantification of the pesticide. The combined cleanup and chromatographic method steps were sensitive and reliable for simultaneous determination of residues of the 2 isomers of flumorph in the studied samples. This method is characterized by recovery >97.9, coefficient of variation <6.2, and limit of quantification of 0.01 mg/kg, in agreement with directives for method validation in residue analysis. Flumorph residues in the samples were further confirmed by HPLC/mass spectrometry. The proposed method is fast, easy to perform, and could be used for monitoring of pesticide residues.

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