Emission detector for

Johnson, D., Quimby, B., and Sullivan, J. Atomic emission detector for GC. American Laboratory, October, 13, 1995. 

Plasmas compare favourably with both the chemical combustion flame and the electrothermal atomiser with respect to the efficiency of the excitation of elements. The higher temperatures obtained in the plasma result in increased sensitivity, and a large number of elements can be efficiently determined. Common plasma sources are essentially He MIP, Ar MIP and Ar ICP. Helium has a much higher ionisation potential than argon (24.5 eV vs. 15.8 eV), and thus is a more efficient ionisation source for many nonmetals, thereby resulting in improved sensitivity. Both ICPs and He MIPs are utilised as emission detectors for GC. Plasma-source mass spectrometry offers selective detection with excellent sensitivity. When coupled to chromatographic techniques such as GC, SFC or HPLC, it provides a method for elemental speciation. Plasma-source detection in GC is dominated by GC-MIP-AES... 

Although the data generated by a MIP emission detector for GC are similar in many ways to those produced by a mass-selective detector, the information provided is often complementary [68]. An AES detector provides ... 

There are many GC detectors available although the flame ionisation detector remains the most widely used and the most widely applicable to quality control of pharmaceutical products. However, newer detectors such as the plasma emission detector for analysis of trace impurities or the GC-FTIR detector for the structural characterisation of components in mixtures are becoming increasingly important. 

Liu, Y. and Lopez-Avila (1993) On-line microwave-induced helium plasma atomic emission detector for capillary zone electrophoresis./. High Resol. Chromatogr., 16, 717-720. 

T.G. Albro and J. Lippert, Use of the atomic emission detector for screening and detection of chemical warfare agents and their breakdown products, in Proceedings of the 1994 ERDEC Scientific Conference on Chemical and Biological Defense Research., D.A. Berg (Ed.), National Technical Information Service, Spring-field, 171-176, 1996. 

F. David and P. Sandra, Comparison of the Sensitivity of the Flame Photometric Detector and the Atomic Emission Detector for the Analysis of Thiazone, Hewlett-Packard Application Note 228-136, Publication No. (43) 5091-1933E, USA, August 1991. 

The variety of detectors available range from the universal (flame ionization detector) to the specific (electron-capture, thermionic, flame photometric and atomic emission detectors). For example, the electron-capture detector is specific for halogen-containing compounds, e.g. organochlorine pesticides. 

Online applications are by far the most important utilization of diode array spectrometry. High-performance liquid chromatography, supercritical fluid chromatography, capillary electrophoresis, and flow-injection techniques produce enhanced sensitivity and structure-related information due to coupling with diode-array-based detectors. Emission of the microwave-induced plasma generated in atomic emission detectors for capillary gas chromatography is also analyzed by means of UV-Vis diode array instruments. 

Sulfur compounds play a major role in determining the flavor and odor characteristics of many food substances. Often sulfur compounds are present in trace levels in foods making their isolation and quantification very difficult for chromatographers. This study compares three gas chromatographic detectors the flame photometric detector, sulfur chemiluminescence detector and the atomic emission detector, for the analysis of volatile sulfur compounds in foods. The atomic emission detector showed the most linearity in its response to sulfur the upper limit of the linear dynamic range for the atomic emission detector was 6 to 8 times greater than the other two detectors. The atomic emission detector had the greatest sensitivity to the sulfur compounds with minimum detectable levels as low as 1 pg. 

H.L. Peters, K.E. Levine, and B.T. Jones. An inductively coupled plasma carbon emission detector for aqueous carbohydrate separations by liquid chromatography. Anal. Chem., 73 453-457, 2001. 

Hewlett Packard Technical Bulletins and Application Notes on the HP 5921A Atomic Emission Detector for GC, 1988-90, Hewlett Packard Corporation, Avondale, PA. 

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