TY  - JOUR
TT  - The Effects of Pretreatment with Dipping Solution on Variation of Bos-calid Residue in Grape Samples During Drying Process with Natural Sunlight
AU  - Cittan, Mustafa
AU  - Çelik, Ali
AU  - Dost, Kenan
PY  - 2017
DA  - September
DO  - 10.18466/cbayarfbe.339312
JF  - Celal Bayar University Journal of Science
JO  - CBUJOS
PB  - Manisa Celal Bayar University
WT  - DergiPark
SN  - 1305-130X
SP  - 609
EP  - 614
VL  - 13
IS  - 3
KW  - Boscalid
KW  - degradation
KW  - GC-MS
KW  - QuEChERS
KW  - raisin
N2  - Field experiments were carried out to investigate thevariation of boscalid level during the drying period in grape samples that werepretreated and untreated with a dipping solution named POTAS prior to naturalsunlight drying. Grape samples were collected at harvest and on the 3rd,7th and 10th days after harvest (during the dryingprocess of the pretreated and untreated grapes). Initially, 360 differentpesticides were scanned qualitatively by GC-MS and LC-MS/MS after QuEChERS (Quick,easy, cheap, effective, rugged and safe) extraction method and only boscalidwas observed in grape samples. Consequently, study was concentrated on boscalidextraction and analysis. Boscalid residues were extracted and cleaned up usingQuEChERS method. The analysis method shows a good linearity over theconcentration range of 0.010-0.125 mg kg-1 with a correlationcoefficient value of 0.998. Recoveries of the extraction and the analysismethods ranged from 74.8 to 100.8% within 0.7-1.7 % RSD at three differentconcentration levels. Detection and quantification limits were 0.77 and 2.55 µgkg-1, respectively. The uncertainty of the method was calculated as0.100±0.040 mg kg-1. The results showed that grapes pretreated withthe dipping solution prior to drying process showed shorter drying times andhigher boscalid degradation rate than those untreated.
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UR  - https://doi.org/10.18466/cbayarfbe.339312
L1  - https://dergipark.org.tr/en/download/article-file/345765
ER  -