PLASMA CHROMATOGRAPHY - A NEW DIMENSION FOR GAS CHROMATOGRAPHY AND MASS SPECTROMETRY
PLASMA CHROMATOGRAPHY - A NEW DIMENSION FOR GAS CHROMATOGRAPHY AND MASS SPECTROMETRY
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DOI：
10.1093/chromsci/8.6.330
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发表时间：
1970-01-01
影响因子：
1.3
通讯作者：
KARASEK, FW
中科院分区：
文献类型：
--
作者：
COHEN, MJ;KARASEK, FW
Plasma Chromatograph™是一个正负离子分子反应器，带有一个离子漂移光谱仪，在大气压下工作。PC可以与气相色谱仪一起操作，用于检测和峰表征。预计信息将出现一个新的层面。等离子体色谱仪可将GC用作质谱仪（GC-PC-MS）的离子接口，在质谱仪中主要形成分子离子。在PC和PC-MS中，可以在低至10− 12摩尔分数的超痕量浓度水平下观察到许多有机分子类型。以二甲基亚砜为例，描述了正、负PC等离子体图信号和特征性的PC-MS质谱图。操作理论和阈值信号的定量估计说明了GC的兼容性。
The Plasma Chromatograph™ is a positive and negative ion-molecule reactor with an ion drift spectrometer which operates with an atmospheric pressure gas. The PC can operate with a gas chromatograph for detection and peak characterization. A new dimension in information is foreseen. The Plasma Chromatograph may serve the GC as an ion interface to the mass spectrometer (GC-PC-MS) in which principally molecular ions are formed. In both the PC and PC-MS many organic molecule types may be observed at ultra-trace concentration levels down to 10−12mole fraction. Dimethyl sulfoxide is used as an example to describe the positive and negative PC plasmagram signals and the characteristic PC-MS mass spectrogram. A theory of operation and quantitative estimate of the threshold signal illustrates the GC compatibility.