Determination of solvents permeating through chemical protective clothing with a microsensor array.
Determination of solvents permeating through chemical protective clothing with a microsensor array.
复制标题
使用微传感器阵列测定渗透化学防护服的溶剂。
DOI：
10.1039/b001728k
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
Zellers,ET
中科院分区：
文献类型：
--
作者：
Park,J;Zellers,ET
The performance of a novel prototype instrument in determining solvents and solvent mixtures permeating through samples of chemical protective clothing (CPC) materials was evaluated. The instrument contains a mini-preconcentrator and an array of three polymer-coated surface-acoustic-wave (SAW) microsensors whose collective response patterns are used to discriminate among multiple permeants. Permeation tests were performed with a 2.54 cm diameter test cell in an open-loop configuration on samples of common glove materials challenged with four individual solvents, three binary mixtures, and two ternary mixtures. Breakthrough times, defined as the times required for the permeation rate to reach a value of 1 µg cm−2 min−1, determined by the instrument were within 3 min of those determined in parallel by manual sampling and gas chromatographic analysis. Permeating solvents were recognized (identified) from their response patterns in 59 out of 64 measurements (92%) and their vapor concentrations were quantified to an accuracy of ±31% (typically ±10%). These results demonstrate the potential for such instrumentation to provide semi-automated field or bench-top screening of CPC permeation resistance.
