| Autor: |
Zhao, Junlong, Tan, Zhenchao, Wen, Yan, Fan, Shuai, Gao, Yan, Liu, Chenglan |
| Předmět: |
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| Zdroj: |
International Journal of Environmental Analytical Chemistry; Dec2022, Vol. 102 Issue 16, p3833-3840, 8p |
| Abstrakt: |
The dissipation and residues of tebuconazole in green onion (welsh onion and chive) in China were firstly investigated based on a quick, easy, cheap, effective, rugged and safe method (QuEChERS) combined with high-performance liquid chromatography-ultraviolet detector (HPLC-UV). In the method validation, the fortified recoveries ranged from 96% to 100% with relative standard deviations of ≤10%. The dissipation rate of tebuconazole follows the first-order kinetics, with the half-lives of 9.4–9.9 days. Based on the terminal residue test, a risk quotient (RQ) for dietary exposure assessment was carried out on green onions. The RQs for tebuconazole at pre-harvest interval (PHI) 7, 10 and 14 days were all less than 100%, which is acceptable for human consumption. The present study can provide a reference that establishes maximum residue limits (MRLs) of tebuconazole in green onion, which is not currently established in China. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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