摘要
The UV-Vis and infrared(IR)absorption spectra of organophosphorus(OP)pesticides have been studied.A correlation in spectra was developed to optimize the OP pesticides in the environments.The spectroscopic(UV-Vis and IR)spectrum of OP pesticides like methyl parathion,malathion and parathion has been interpreted in detail.A complete calculation of the normal frequencies and absolute intensities of UV-Vis and IR absorption bands are interpreted with the help of corresponding experimental data.In the colorimetric reactions,the bands appear at 2 077,1 637,1 455,1 015,655cm^(-1) for malathion;2 081,1 639,1 316,1 015,794,683cm^(-1) for parathion;2 078,1 632,1 032,794cm^(-1) for methyl parathion were used for quantitative or qualitative analysis.All these IR spectra were acquired by averaging 100 scans at a resolution of 4cm^(-1).It is determined experimentally in the region 200~450nm for UV-Vis absorption bands and in the region 400~4 000cm^(-1) for IR absorption bands.It is concluded that the mainly optically active groups(P—OH, C=O,P=O, C—O—C,P—O—C, P=S, —OH)present in pesticides which are responsible in change in significant data for quantitative and qualitative analysis.The various optical properties like wavelength,band energy,wave number,and frequency,also are calculated.
The UV-Vis and infrared （IR）absorption spectra of organophosphorus （OP）pesticides have been studied.A correlation in spectra was developed to optimize the OP pesticides in the environments.The spec-troscopic （UV-Vis and IR）spectrum of OP pesticides like methyl parathion,malathion and parathion has been interpreted in detail.A complete calculation of the normal frequencies and absolute intensities of UV-Vis and IR absorption bands are interpreted with the help of corresponding experimental data.In the colorimetric reac-tions,the bands appear at 2 077,1 637,1 455,1 015,655 cm-1 for malathion;2 081,1 639,1 316,1 015, 794,683 cm-1 for parathion;2 078,1 632,1 032,794 cm-1 for methyl parathion were used for quantitative or qualitative analysis.All these IR spectra were acquired by averaging 100 scans at a resolution of 4 cm-1 .It is determined experimentally in the region 200-450 nm for UV-Vis absorption bands and in the region 400-4 000 cm-1 for IR absorption bands.It is concluded that the mainly optically active groups （P-OH, C-O, P-O, C-O-C,P-O-C, P-S, -OH）present in pesticides which are responsible in change in sig-nificant data for quantitative and qualitative analysis.The various optical properties like wavelength,band en-ergy,wave number,and frequency,also are calculated.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2016年第9期3033-3038,共6页
Spectroscopy and Spectral Analysis
基金
worked in funding projects from DST,New Delhi for extensive research in the area of nano-bio molecular spectroscopy and sensor technology development
作者简介
Amit Kumar Sharma, Ph. D. , CSIR RAship Assistant Professor, Department of Physics College of Engineering, Teerthanker Mahaveer University e-mail： amit vashishtha1980@rediffmail, com, amit. db1980@gmail, com
