We developed a rapid and simple method which combines a surface swab capture method and surface-enhanced Raman spectroscopy for recovery and quantitative detection of thiabendazole on apple surfaces. The whole apple surface was swabbed and the swab was vortexed in methanol releasing the pesticide. Silver dendrites were then added to bind the pesticide and used for enhancing the Raman signals. The recovery of the surface swab method was calculated to be 59.4-76.6% for intentionally contaminated apples at different levels (0.1, 0.3, 3, and 5 ppm, mu g/g per weight). After considering the releasing factor (66.6%) from the swab, the final accuracy of the swab-SERS method was calculated to be between 89.2% and 115.4%. This swab-SERS method is simple, sensitive, rapid (similar to 10 min), and quantitative enough for QA/QC in plant procedure. This can be extended to detect other pesticides on raw agricultural produce like pears, carrots, and melons etc. (C) 2013 Elsevier Ltd. All rights reserved.
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[Anonymous], 2005, Raman spectroscopy for chemical analysis M
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Univ Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
He, Lili
Lamont, Elise
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Univ Minnesota, Coll Vet Med, Dept Vet Populat Med, St Paul, MN 55108 USA
Univ Minnesota, Coll Vet Med, Dept Vet & Biomed Sci, St Paul, MN 55108 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
Lamont, Elise
Veeregowda, Belamaranahally
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Vet Coll, Dept Vet Microbiol, Bangalore 560024, Karnataka, IndiaUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
Veeregowda, Belamaranahally
Sreevatsan, Srinand
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Univ Minnesota, Coll Vet Med, Dept Vet Populat Med, St Paul, MN 55108 USA
Univ Minnesota, Coll Vet Med, Dept Vet & Biomed Sci, St Paul, MN 55108 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
Sreevatsan, Srinand
Haynes, Christy L.
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Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
Haynes, Christy L.
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Diez-Gonzalez, Francisco
Labuza, Theodore P.
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Univ Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
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Univ Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
He, Lili
Lamont, Elise
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Univ Minnesota, Coll Vet Med, Dept Vet Populat Med, St Paul, MN 55108 USA
Univ Minnesota, Coll Vet Med, Dept Vet & Biomed Sci, St Paul, MN 55108 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
Lamont, Elise
Veeregowda, Belamaranahally
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Vet Coll, Dept Vet Microbiol, Bangalore 560024, Karnataka, IndiaUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
Veeregowda, Belamaranahally
Sreevatsan, Srinand
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Univ Minnesota, Coll Vet Med, Dept Vet Populat Med, St Paul, MN 55108 USA
Univ Minnesota, Coll Vet Med, Dept Vet & Biomed Sci, St Paul, MN 55108 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
Sreevatsan, Srinand
Haynes, Christy L.
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Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA
Haynes, Christy L.
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Diez-Gonzalez, Francisco
Labuza, Theodore P.
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Univ Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USAUniv Minnesota, Dept Food Sci & Nutr, St Paul, MN 55108 USA