Determination of nitenpyram dissipation and residue in kiwifruit by LC-MS/MS
| Autor: | Lingzhu Chen, Deyu Hu, Qingmei Song, Yuping Zhang, Shijia Ge, Ye Wang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
030309 nutrition & dietetics
Health Toxicology and Mutagenesis Actinidia Food Contamination Toxicology 01 natural sciences Neonicotinoids 03 medical and health sciences Residue (chemistry) chemistry.chemical_compound Tandem Mass Spectrometry Lc ms ms Nitenpyram 0303 health sciences Chromatography Chemistry 010401 analytical chemistry Pesticide Residues Public Health Environmental and Occupational Health General Chemistry General Medicine 0104 chemical sciences Fruit Food Analysis Chromatography Liquid Food Science |
| Zdroj: | Food Additives & Contaminants: Part A. 37:955-962 |
| ISSN: | 1944-0057 1944-0049 |
| DOI: | 10.1080/19440049.2020.1741693 |
| Popis: | To investigate the presence of nitenpyram in kiwifruit, a field experiment was conducted in six kiwifruit producing regions in China. A modified quick, easy, cheap, effective, rugged and safe method (QuEChERS) method based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed for the determination of nitenpyram in kiwifruit. Quantitative detection was performed by LC-MS/MS in multiple reaction monitoring (MRM) mode under positive-ion electrospray ionisation. The proposed method is linear and accurate in the range of 0.005 to 4.5 μg/mL. The recovery of nitenpyram was satisfactory (71.96-96.67%) with reasonable RSDs (9.83 %) for 0.01-4.5 mg/kg spiked levels. The limit of quantification (LOQ) was 0.01 mg/kg for nitenpyram. Nitenpyram degraded rapidly in kiwifruit with a half-life4 days. Residues of nitenpyram were0.01 - 0.54 mg/kg in kiwifruit 7, 14 and 21 days after spraying at six sites. |
| Databáze: | OpenAIRE |
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