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本文用气封室解决了一般开关式进样器载气逸出使基线较长时间波动的问题,进样一次约需2～3秒,进样时基线波动(进样峰)比一般无隔膜进样器(开关式进样器)小得乡,进样峰的峰宽约为10秒,所以保留时间较短的色谱峰也不会受到影响,其性能比一般开关式进样器优越。本进样方法的重现性良好,连续进样11次,峰高的变动系数为3.5%。
In this paper, gas-sealed room to solve the general switch-mode injector carrier gas to make the baseline volatility for a long time, the injection time of about 2 to 3 seconds, the baseline injection of sample fluctuations (injection peak) than the general non-membrane The injector (on-off sampler) is small and has a peak width of the injection peak of about 10 seconds, so the shorter peak retention time is not affected and its performance is superior to a typical switch-mode injector. The reproducibility of this injection method is good, continuous injection of 11 times, the peak height of the coefficient of variation of 3.5%.