Near-near-infrared thermal lens spectroscopy to assess overtones and combination bands of sulfentrazone pesticide
作者： M. Ventura , J.R. Silva , L.H.C. Andrade , R.P. Scorza Júnior , S.M. Lima
DOI: 10.1016/J.SAA.2017.06.043
关键词:
摘要: Thermal lens spectroscopy (TLS) in the near-near-infrared region was used to explore absorptions of overtones and combination bands sulfentrazone (SFZ) herbicide diluted methanol. This spectroscopic chosen order guarantee that only thermal effect is noted during experimental procedure. The results showed it possible detect very low concentrations (~2ng/μL) SFZ methanol by determining its diffusivity or absorption coefficient due 3ν(NH)+1δ(CH) band. minimum concentration limit observed chromatography method. findings demonstrated TLS can be for precise accurate assessment pesticides ecosystems. Besides, band at 960nm as a marker
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