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A Liquid Crystal-Bad Passive Badge for Personal
Monitoring of Exposure to Hydrogen Sulfidetwilight
beat it歌词翻译
scr期刊名称： Journal of Occupational & Environmental Hygienestart up
国庆的诗作者： Robinson, Sheila E.,Grinwald, Bart A.,Bremer, Laura L.,Kupcho, Kurt
A.,Acharya, Bharat R.,Owens, Patrick D.bbo
年份： 2014年
renee期号： 第11期
关键词： occupational exposure; TWA; TLV (R); passive monitoring; hydrogen
sulfide
摘要：A new liquid crystal (LC)-bad passive dosimeter badge for personal monitoring of exposure to
sad是什么意思
hydrogen sulfide (H2S) gas is reported. When a thin film of LC supported on a surface functionalized with lead perchlorate Pb(ClO4)2 (the LC nsor) is expod to H2S, the orientation of LC molecules in the film changes from perpendicular to parallel. This reorientation induces a change in the appearance of the LC film when viewed between crosd polarizers. A H2S dosimeter was fabricated by pairing a LC nsor with a glass substrate forming a headspace between the two surfaces, to control diffusion of H2S across the LC film. When the dosimeter is expod to H2S, a bright front appears as a function of exposure time. An algorithm has been developed to correlate this respon length and exposure do. The dosimeters are functionally
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