CAJ | 학술논문

2011-2012年在黑龙江肇东、河南祝楼、江苏句容三地通过田间试验，研究了盐酸吗啉胍在水稻植株和田水中的消解动态。水稻植株和田水采用UPLC-MS/MS正离子扫描测定残留的盐酸吗啉胍。结果表明，水稻植株和田水的3种添加浓度（0.005、0.05、0.5 mg·kg-1）平均回收率分别为92.50%~109.20%和86.40%~107.20%，相对标准偏差分别为6.10%~6.90%和0.73%~3.10%。本方法在植株和田水中的最低检出浓度为0.005 mg·kg-1。从消解动力学方程可知，盐酸吗啉胍在水稻植株及田水中的消解半衰期分别为1.2~4.7、1.0~3.5 d。从结果判断盐酸吗啉胍属较易降解农药。
2011-2012년재흑룡강조동、하남축루、강소구용삼지통과전간시험，연구료염산마람고재수도식주화전수중적소해동태。수도식주화전수채용UPLC-MS/MS정리자소묘측정잔류적염산마람고。결과표명，수도식주화전수적3충첨가농도（0.005、0.05、0.5 mg·kg-1）평균회수솔분별위92.50%~109.20%화86.40%~107.20%，상대표준편차분별위6.10%~6.90%화0.73%~3.10%。본방법재식주화전수중적최저검출농도위0.005 mg·kg-1。종소해동역학방정가지，염산마람고재수도식주급전수중적소해반쇠기분별위1.2~4.7、1.0~3.5 d。종결과판단염산마람고속교역강해농약。
Through field experiments, which were conducted in Zhaodong County of Heilongjiang Province, Zhulou County of Henan Province and Jurong County of Jiangsu Province, the degradation dynamics of moroxydine hydrochloride in rice plant and field water were investigated. The detection was performed by tandem mass spectrometry with electrospray ionization in positive mode(ESI+). The results showed that the average recoveries of rice plant and field water at three spiked levels(0.005, 0.05, 0.5 mg·kg-1)were found in the range of 92.50%~109.20%with RSD 6.10%~6.90%and 86.40%~107.2%with RSD 0.73%~3.10%, respectively. Limits of detection(LOD)of plant and water were 0.005 mg·kg-1. The degradation kinetic equation showed that the half-life of moroxydine hydrochloride in rice plant and field water was 1.2~4.7 d, 1.0~3.5 d, respectively. The moroxydine hydrochloride was proved to be an easily degradable pesticide.