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(1)问:在程序升温分析过程中,有时不进样也会出现色谱峰,这是什么原因, 咎:这些峰称为“假峰”。产生假峰的原因可能有下面几个。第一,如果色谱峰之间有均匀的间隔,则可能是由于进样器温度太高,硅橡胶隔膜受热分解所引起的。所以,应根据被测试样的沸点选择适宜的汽化室温度。将硅橡胶隔膜在高温下作预处理,也可以避免或减少假峰的出现。
(1) Q: In the process of temperature analysis, sometimes there will be no injection of chromatographic peaks, what is the reason, blame: these peaks are called “fake peak.” There are several possible causes of spurious peaks. First, if there is a uniform separation between the peaks, it may be due to the fact that the injector temperature is too high and the silicone rubber diaphragm is thermally decomposed. Therefore, should be based on the boiling point of the sample to be selected by the appropriate temperature of the vaporization chamber. Pre-treatment of silicone rubber diaphragms at high temperatures also avoids or reduces the appearance of ghost peaks.