scholarly journals MONITORING OF ORGANOPHOSPHORUS PESTICIDE RESIDUES IN FLUID AND POWDERED MILK BY GAS CHROMATOGRAPHY WITH FLAME PHOTOMETRIC DETECTOR

Química Nova ◽  
2014 ◽  
Author(s):  
Lucia Helena Pinto Bastos ◽  
Adherlene Vieira Gouvêa ◽  
Nina Daddário Ortiz ◽  
Maria Helena W. Morelli Cardoso ◽  
Silvana do Couto Jacob ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Pesticide Residues ◽  
Organophosphorus Pesticide ◽  
Powdered Milk ◽  
Flame Photometric Detector ◽  
Photometric Detector

A General Method for Organophosphorus Pesticide Residues in Nonfatty Foods

1971 ◽  
Vol 54 (3) ◽  
pp. 513-516 ◽  
Author(s):  
R W Storherr ◽  
P Ott ◽  
R R Watts
Keyword(s):  
Potassium Chloride ◽  
Pesticide Residues ◽  
Organophosphorus Pesticides ◽  
Extraction Procedure ◽  
Organophosphorus Pesticide ◽  
Flame Photometric Detector ◽  
Chlorinated Hydrocarbon ◽  
Photometric Detector ◽  
General Method

Abstract A method is presented for determining residues of organophosphorus pesticides and alteration products in nonfatty foods. This method employs the acetonitrile extraction procedure as used by FDA for the chlorinated hydrocarbon pesticides. Cleanup is performed with a short charcoal column. GLC, using the potassium chloride thermionic detector or flame photometric detector, is used for determination. Forty-one organophosphorus pesticides and/or alteration products are evaluated.

scholarly journals Determination of Organophosphorus Pesticide Residues in Winter Bamboo Shoots by Homogenate Extraction Coupled with Gas Chromatography-Flame Photometric Detector

2020 ◽  
pp. 7-12
Author(s):  
Zhu Yu-Xin ◽  
Xu Liu-Yue ◽  
Feng Qi ◽  
Zhu Miao-Qin
Keyword(s):  
Gas Chromatography ◽  
Pesticide Residues ◽  
Limit Of Detection ◽  
Organophosphorus Pesticides ◽  
Flame Photometric Detector ◽  
Photometric Detector ◽  
Bamboo Shoots ◽  
Homogenate Extraction ◽  
Relative Standard

Excessive use of organophosphorus pesticides (OPPs) in fruits and vegetables may affect human health. In this paper, a simple, rapid and effective method for the determination of five OPPs in winter bamboo shoots by gas chromatography-flame photometric detector (GC-FPD) was developed. Three extractants and three extraction methods were examined respectively. The results showed that the recovery rate was higher when the samples were extracted by acetonitrile and treated with homogenate extraction method. Under the optimized conditions, recoveries ranged from 82.12% to 91.48% with the relative standard deviation (RSD) of 1.51-4.20% and the limit of detection (LOD) of 0.005-0.02 μg/mL. Results showed that using acetonitrile as extractants and homogenate extraction in sample preparation is an effective method in determination of pesticide residues in winter bamboo shoots.

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