Objective:To study the residues degradation rule of plant growth regulators 4-chlorophenxyacetate and 6-benzylaminopurine in bean sprout.Method:The ultra-high performance liquid chromatography-tandem mass spectrometry method was used to study the dynamic residues of sodium 4-chlorophenoxyacetate and 6-benzyladenine in soybean sprouts under refrigeration and freezing conditions by standard addition recovery test,and soybean sprouts and mung bean sprouts without detected 4-chlorophenoxyacetic acid sodium and 6-benzyladenine were used as blank matrices.Result:Under freezing conditions,the degradation half-lives of 4-chlorophenxyacetate in soybean sprouts and mung bean sprouts were 44.1 d and 90.0 d,respectively,and the degradation half-lives of 6-benzylaminopurine were 32.4 d and 40.8 d,respectively.Under cold storage conditions,the degradation half-lives of 4-chlorophenxyacetate in soybean sprouts and mung bean sprouts were 37.5 d and 45.3 d,respectively,and the degradation half-lives of 6-benzylaminopurine were 11.8 d and 31.8 d,respectively.Conclusion:The study provide a theoretical study on the situation that the preliminary detection conclusion is overturned due to the degradation of bean sprouts itself.
关键词
豆芽/降解/超高效液相色谱-串联质谱法/4-氯苯氧乙酸钠/6-苄基腺嘌呤
Key words
bean sprouts/degradation/ultra-high performance liquid chromatography-tandem mass spectrometry/4-chlorophenxyacetate/6-benzylaminopurine
维普
万方数据