Comparison of Tartrazine, Allura Red, BSF and Pyranin120%as Tracers for Pesticide Deposition Measurement
Spraying deposition test was widely used in plant protection technology and application techniques as a characteristic physical parameter.For assessments of the deposition,tracers were normally used to replace pesticide analysis,since tracers are easier and safer to handle.In this study,four commonly used tracers: Brilliant Sulpho Flavine(BSF),Pyranin120%,Allura-Red and Tartrazine were analyzed qualitatively with colorimetric analysis and fluorescence analysis respectively.Application conditions,stability and applicability of the targets were also tested in the experiment.Results showed that: 1)BSF and Pyranin120%had good linear relation of fluorescent value to concentration of 0.05-0.8mg/L and 0.001-0.01mg/L respectively.Tartrazine and Allura-Red had a linear relation to 2-20mg/L.2)Allura-Red and Tartrazine had the best storage stability with a lower than 5%degradation rate after 192 hours.3)Six kinds of collectors(Petri dish,glass slide,Mylar film,filter paper,hydrophilic leaves and hydrophobic leaves)were selected as collectors in the study.All the dyes analyzed could be well extracted from the surface of Petri dishes.Fluorescent tracers were advised to keep the exposure of samples to solar radiation as low as possible when accurate measurements are needed.
tracer deposition spray colorimetric analysis fluorescence analysis
Liu Yang Song Jianli Li Longlong He Xiongkui Wang Xiao’nan Wang Shilin
College of Science,China Agricultural University,Beijing 100193,China
国内会议
广州
英文
67-77
2016-11-12（万方平台首次上网日期，不代表论文的发表时间）