HIGH-RESOLUTION GAS-CHROMATOGRAPHY MATRIX-ISOLATION INFRARED SPECTROMETRY
HIGH-RESOLUTION GAS-CHROMATOGRAPHY MATRIX-ISOLATION INFRARED SPECTROMETRY
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DOI：
10.1021/ac00285a024
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发表时间：
1985-01-01
影响因子：
7.4
通讯作者：
BOURNE, S
中科院分区：
文献类型：
--
作者：
REEDY, GT;ETTINGER, DG;BOURNE, S
描述了一种装置，其允许在冷凝惰性气体基质内收集来自高分辨率气相色谱仪的流出物化合物。每种收集的化合物包含在直径通常为0.3 mm的区域内，每纳克样品产生伴随的高水平红外光谱吸收。测试证明了红外灵敏度的水平，样品分子的基质分离的实现，以及气相色谱仪实现的化合物分离的维持。该仪器的使用已被证明是多环芳烃，多氯联苯，二恶英，和脂肪烃化合物。基质隔离技术已被广泛用于研究分子的红外光谱特性（1-4）。在这项技术中，待研究的分子与过量的惰性气体（如氩气）共冷凝。被困在固态氩基质中，温度在10到15之间
An apparatus Is described that allows the collection, within a matrix of condensed Inert gas, of the effluent compounds from a hlgh-resolutlon gas chromatograph. Each collected compound Is contained within an area typically 0.3 mmIn diameter yielding a concomitant high level of Infrared spectral absorbance per nanogram of sample. Tests demonstrate the level of Infrared sensitivity, the achievement of matrix Isolation of the sample molecules, and the maintenance of compound separation achieved by the gas chromatograph. Use of the apparatus Is demonstrated for PAH, PCB, dioxin, and aliphatic hydrocarbon compounds.The technique of matrix isolation has beenextensively used to study the infrared spectrometric properties of molecules (1-4). In this technique themolecules to be studied are co-condensed with an excess of inert gas, such as argon. Trapped in the solid argon matrix, at temperatures between 10 and 15