Analysis of tebuconazole residues in coconut water, kernel and leaves using LC-MS/MS
Autor: | V. Sivakumar, K. Bhuvaneswari, K. Prabakaran, A. Suganthi, E. Madhu Sudhanan, E. Rajeswari, N. Sathiah |
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Rok vydání: | 2020 |
Předmět: |
Cocos
Mass spectrometry 01 natural sciences Analytical Chemistry chemistry.chemical_compound 0404 agricultural biotechnology Tandem Mass Spectrometry Lc ms ms Electro spray Solid phase extraction Chromatography High Pressure Liquid Tebuconazole Chromatography 010401 analytical chemistry Solid Phase Extraction Pesticide Residues food and beverages 04 agricultural and veterinary sciences General Medicine Triazoles 040401 food science 0104 chemical sciences Fruit and Vegetable Juices Plant Leaves chemistry After treatment Food Science |
Zdroj: | Food chemistry. 359 |
ISSN: | 1873-7072 |
Popis: | A method was validated for determining tebuconazole residues in coconut water, kernel and leaves using Liquid chromatography-Mass spectrometry/Mass spectrometry (LC–MS/MS) with electro spray ionization in positive ion mode. Samples were extracted with acetonitrile and subsequent clean-up was done using dispersive solid phase extraction. Recovery ranged between 70 and 114.39 % and the RSD was between 0.64 and 10.24 %. Root feeding studies with tebuconazole @ 5 and 10 mL/100 mL of water/tree revealed the presence of tebuconazole residues in coconut leaves until three days after treatment but dissipated to below quantifiable limit on 5th day at single dose while the residues went below quantifiable limit after 10 days at double the dose. Residues were below quantifiable limit in coconut water and kernel until three days. Data obtained from the study were used for estimating the risks associated with the exposures to tebuconazole residues in coconut. |
Databáze: | OpenAIRE |
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