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KMID : 0380620120440030378
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Korean Journal of Food Science and Technology
2012 Volume.44 No. 3 p.378 ~ p.381
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Monitoring of Uniconazole by GC-NPD
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Kim Eun-Jung
Choe Bu-Chuhl
Choi Su-Jeong
Hong Chae-Kyu
Kim Eun-Hee
Choi Chae-Man
Seo Young-Ho
Hwang Young-Sook
Jang Mi-Ra
Hwang In-Sook
Kim Moo-Sang
Chae Young-Zoo
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Abstract
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The monitoring of the uniconazole residual pesticide for agricultural products was conducted by multiclass pesticide multiresidue methods. Samples were collected from June to November, 2011. Uniconazole pesticide was detected in 49 samples from a total of 3,939 samples. The amount of uniconazole pesticide ranged from 0.09 to 17.89 mg/kg in 49 samples. This method was described for the simultaneous determination of uniconazole by gas chromatography with a nitrogen phosphorus detector (GC-NPD) and mass spectrometry (MS). The limit of detection and quantification were 0.006 and 0.018 mg/kg GC-NPD, respectively. For an evaluation of the GC-NPD method, uniconazole spiked into gyeojachae at a level of 0.5, 5 mg/kg was determined. The recoveries of uniconazole by the GC-NPD method ranged from 83.4 to 101.4%. The results indicate that the method of simultaneous analysis is applicable to uniconazole analysis.
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KEYWORD
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uniconazole, gas chromatography, simultaneous determination, monitoring
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