Residue analysis and dissipation of a new fungicide 2-allylphenol in tomato.
The method of residue analysis of a new synthesized fungicide 2-allylphenol was studied by simulating the active compound structure in Gingko tree (Gingko biloba L.) and its dissipation rate and terminal residue levels in tomato under field condition. Residues of 2-allylphenol were extracted from tomato matrix with acetone, purified by liquid-liquid extraction and Florisil cartrieges, and then determined by HPLC with UV-detector. The minimum detectable amount of 2-allylphenol was 3 x 10(-9) g, the minimum detectable concentration of 2-allylphenol in the samples of tomato were 0.01 mg/kg. The ranges of average recoveries and coefficient variation of the method were 87.7%-90.2% and 1.25%-2.06%, respectively. The dissipation rate and terminal residue levels in tomato were determined with the method described above. The results showed that the half-life of 2-allylphenol in tomato was 6.37 d, and 2-allylphenol declined with 82.6% of the initial deposit remaining in tomato at harvest. The terminal residue levels in tomato were 0.15 mg/kg and 0.20 mg/kg following the recommended doses and time intervals.
Hu
Ji-Ye
JY
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. hujiye6@263.net
Zhang
Wen-Ji
WJ
Li
Jian-Zhong
JZ
D000096:Acetone; D002851:Chromatography, High Pressure Liquid; D005659:Fungicides, Industrial / Q000032:analysis*; D020441:Ginkgo biloba / Q000737:chemistry*; D006207:Half-Life; D018551:Solanum lycopersicum / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis*; D010636:Phenols / Q000032:analysis*
D005659:Fungicides, Industrial; D010573:Pesticide Residues; D010636:Phenols; D000096:Acetone; C099328:2-allylphenol