GAS CHROMATOGRAPH BASED ON PIEZOELECTRIC DETECTOR
GAS CHROMATOGRAPH BASED ON PIEZOELECTRIC DETECTOR
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DOI：
10.1093/chromsci/9.9.535
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发表时间：
1971-01-01
影响因子：
1.3
通讯作者：
GIBBINS, KR
中科院分区：
文献类型：
--
作者：
KARASEK, FW;GIBBINS, KR
涂覆合适底物的压电晶体可用于检测从GC柱上洗脱出来的化合物。本文描述了一种使用基于该原理的探测器在室温下工作的简单且完全便携的分析仪器。它结合了最适合用作GC检测器的压电晶体振荡器的特性。该仪器响应迅速，与样品大小成正比；其灵敏度在ppm浓度范围内。沸腾温度在40°C到200°C之间的化合物在长度小于20英寸的色谱柱上分离，保留时间短，响应值大。由于响应随分子量增加而增加，P/Z GC特别适用于低温层析，因此可以分析在室温以上通常不稳定的化合物。
Piezoelectric crystals coated with a suitable substrate can be used to detect compounds eluting from a GC column. A simple and completely portable analytical instrument operating at room temperature using a detector based on this principle is described. It incorporates the characteristics of piezoelectric crystal oscillators best suited for a detector in GC. The instrument response is rapid and proportional to sample size; its sensitivity is in the ppm concentration range. Compounds in the boiling range 40°C to 200°C are separated on columns less than 20 inches in length with short retention times and large responses. With a response that increases as a function of molecular weight, the P/Z GC is especially applicable to low temperature chromatography so that compounds normally unstable above room temperature can be analyzed.