Inferential monitoring of chlorinated solvents through Raman spectroscopic observation of the vibrational modes of water
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- 作者：Joseph V. Sinfield ; jvs@purdue.edu" class="auth_mail" title="E-mail the corresponding author ; Chike Monwuba1 ; Monwubac@peercpc.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Chlorinated solvents ; Trichloroethylene ; Raman spectroscopy ; Inferential monitoring ; Water vibrational modes
- 刊名：Talanta
- 出版年：2016
- 出版时间：1 February 2016
- 年：2016
- 卷：148
- 期：Complete
- 页码：7-16
- 全文大小：910 K
文摘
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Direct and indirect Raman spectroscopic means to assess TCE in aqueous solutions are contrasted.
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OH stretching Raman vibrations of water are observed to be inversely related to TCE concentration.
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Detection mechanism takes advantage of the influence of chlorine on the vibrational modes of water.
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Water Raman line at 3393 cm−1 9x greater sensitivity to TCE than study of TCE Raman lines.
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Tests on simulated biodegraded field samples demonstrate indirect detection in complex samples.