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불꽃이온화 검출기에 의한 기체크로마토그래피 분석에서의 매트릭스의 영향
박병언,김한수,박두선,손무룡 ( Byung Eon Park,Han Soo Kim,Doo Seon Park,Moo Ryong Son ) 한국화학공학회 1993 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.31 No.6
The matrix effect of balance gases on gas chromatographic analysis with FID(Flame Ionization Detector) was investigated. It was well known that the inorganic gases such as He, N₂, Ar and O₂ gave little or no response in the FID, but it gave a noticeable response according to the chosen carrier gas. When the carrier gas was the same as the balance, no matrix effect was found. But when the balance gas had any above mentioned gas as a different component from the carrier gas, even if the concentration of component was a small amount(about 5%), the matrix effect appeared. The effect decreased as follows: O₂>H₂>He>Ar>N₂. In the case of O₂ and H₂, the effect was quite large because of using O₂(or air) and H₂ for the flame of the FID. When the balance gases were He, Ar and N₂, also the matrix effect appeared due to the change of the environment of detector by the introduction of those balance gases. From this experiment, it is better to choose the same carrier gas with the balance gas component in the pure gas analysis. If the balance gas is not the same as the carrier gas, it should be expected that the matrix effect will appear. And also, with mixed gas analysis, the matrix effect will be certainly found, even if that mixed gas has just a few percent of the different component from the carrier gas.