Method validation of resistive heating—gas chromatography with flame photometric detection for the rapid screening of organophosphorus pesticides in fruit and vegetables

2004 ◽  
Vol 1046 (1-2) ◽  
pp. 225-234 ◽  
Author(s):  
K PATEL ◽  
R FUSSELL ◽  
R MACARTHUR ◽  
D GOODALL ◽  
B KEELY
2005 ◽  
Vol 88 (3) ◽  
pp. 729-735
Author(s):  
Xionghai Yi ◽  
Yitong Lu

Abstract A rapid and simple method using accelerated solvent extraction and solid-phase extraction cleanup was developed and validated for the determination of 15 organophosphorus pesticides in ginkgo leaves by capillary gas chromatography with flame photometric detection. The pesticides were extracted at 100°C under 1500 psi pressure in <20 min. The average recovery from 10 g ginkgo leaves, fortified at 3 levels ranging from 0.05 to 1.00 mg/kg, was 95.2% with a relative standard deviation of 4.6%. The limits of detection ranged from 1.11 × 10−3 mg/kg (dimethoate) to 4.44 × 10−3 mg/kg (dichlorvos). The proposed method showed acceptable accuracy and precision while minimizing environmental concerns, time, and labor. Furthermore, the method could be easily applied to the monitoring of these 15 organophosphorus pesticides in ginkgo leaves.


2015 ◽  
Vol 7 (15) ◽  
pp. 6182-6189 ◽  
Author(s):  
Ying Liu ◽  
Man He ◽  
Beibei Chen ◽  
Bin Hu

Vortex-assisted solidification of floating organic drop microextraction combined with GC-FPD for organophosphorus pesticide analysis in water samples.


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