Magnetic microsphere sorbent on CaCO 3 templates: Simple synthesis and efficient extraction of trace carbamate pesticides in fresh produce

Polypyrrole magnetic microspheres were synthesized and used to extract carbaryl, carbofuran, and methomyl before analysis by a high-performance liquid chromatography with diode array detection. Under optimal conditions, four times the preconcentration was achieved with the use of only 1.2 mL of samp...

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Bibliographic Details
Published in:Food chemistry 2021-04, Vol.342, p.128336
Main Authors: Changsan, Titiwan, Wannapob, Rodtichoti, Kaewpet, Morakot, Shearman, Kittiya, Wattanasin, Panwadee, Cheung Mak, Wing, Kanatharana, Proespichaya, Thavarungkul, Panote, Thammakhet-Buranachai, Chongdee
Format: Article
Language:English
Subjects:
Calcium Carbonate - chemistry
Carbamates - chemistry
Carbamates - isolation & purification
Chemistry Techniques, Synthetic
Citrullus - chemistry
Limit of Detection
Lycopersicon esculentum - chemistry
Magnets - chemistry
Microspheres
Pesticides - chemistry
Pesticides - isolation & purification
Polymers - chemistry
Pyrroles - chemistry
Reproducibility of Results
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Summary:Polypyrrole magnetic microspheres were synthesized and used to extract carbaryl, carbofuran, and methomyl before analysis by a high-performance liquid chromatography with diode array detection. Under optimal conditions, four times the preconcentration was achieved with the use of only 1.2 mL of sample. Good linearity with ranges of 3.0-7.5 × 10 , 6.0-4.5 × 10 , and 15-3.0 × 10  ng kg and limits of detection of 1.37 ± 0.10, 4.7 ± 1.2, and 10.1 ± 5.7 ng kg were obtained, respectively. Good reproducibility (RSDs 
ISSN:1873-7072