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目的检测春雷毒素在水、植株和土壤中的消解动态,以及在稻穗、植株和土壤中的最终残留量。方法在河南、黑龙江和江苏三省的水稻中开展田间试验,利用液相色谱分离,质谱检测器检测,外标法定量检测春雷霉素残留量。结果残留消解动态试验显示水和植株中春雷霉素的残留量随时间逐渐降低,土壤中未检出。最终残留量试验发现糙米中春雷霉素的残留量均低于0.10 mg/kg,稻壳中均低于0.20 mg/kg,植株中均低于0.30 mg/kg,土壤中均未检出。结论春雷霉素不易在水、稻穗、植株和土壤中残留,对环境和人体安全。
Objective To detect the digestion kinetics of mitochondria in water, plant and soil, as well as the final residues in rice, plant and soil. Methods Field experiments were carried out in paddy rice in three provinces of Henan, Heilongjiang and Jiangsu Provinces. Quantitative detection of kasugamycin residues was carried out by liquid chromatography, mass spectrometry detector and external standard method. Results Residue digestion Dynamic tests showed that the amount of kasugamycin remaining in water and plants decreased gradually with time and was not detected in the soil. The final residue test showed that the residues of kasugamycin in brown rice were less than 0.10 mg / kg, the contents of rice husks were lower than 0.20 mg / kg, and the contents were lower than 0.30 mg / kg in the rice plants, respectively. Conclusion The kasugamycin is not easy to remain in water, rice, plants and soil, and it is safe to the environment and human body.