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Validation of a GC-MS method for the estimation of dithiocarbamate fungicide residues and safety evaluation of mancozeb in fruits and vegetables

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Title Validation of a GC-MS method for the estimation of dithiocarbamate fungicide residues and safety evaluation of mancozeb in fruits and vegetables
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Creator Mujawar S., Utture S.C., Fonesca E., Matarrita J., Banerjee Kaushik
 
Subject Estimation of dithiocarbamate fungicide
GC-MS
Mancozeb in fruits and vegetables
 
Description Not Available
A sensitive and rugged residue analysis method was validated for the estimation of dithiocarbamate fungicides in a variety of fruit and vegetable matrices. The sample preparation method involved reaction of dithiocarbamates with Tin(II) chloride in aqueous HCl. The CS2 produced was absorbed into an isooctane layer and estimated by GC–MS selected ion monitoring. Limit of quantification (LOQ) was ⩽40 μg kg−1 for grape, green chilli, tomato, potato, brinjal, pineapple and chayote and the recoveries were within 75–104% (RSD < 15% at LOQ). The method could be satisfactorily applied for analysis of real world samples. Dissipation of mancozeb, the most-used dithiocarbamate fungicide, in field followed first + first order kinetics with pre-harvest intervals of 2 and 4 days in brinjal, 7 and 10 days in grapes and 0 day in chilli at single and double dose of agricultural applications. Cooking practices were effective for removal of mancozeb residues from vegetables.
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Date 2020-08-03T07:40:47Z
2020-08-03T07:40:47Z
2014-05-01
 
Type Journal
 
Identifier Mujawar S., Utture S.C., Fonesca E., Matarrita J., Banerjee Kaushik (2014). Validation of a GC-MS method for the estimation of dithiocarbamate fungicide residues and safety evaluation of mancozeb in fruits and vegetables. Food Chemistry 150: 175-181
https://doi.org/10.1016/j.foodchem.2013.10.148
http://krishi.icar.gov.in/jspui/handle/123456789/38898
 
Language English
 
Relation Not Available;
 
Publisher Elsevier