论文部分内容阅读
本文对Ｒｅｉｍｅｒ—Ｔｉｅｍａｎｎ反应产物中香兰素与愈创木酚的气相色谱分析提出了新的色谱条件。采用２．２ｍｍ×２ｍ的不锈钢柱，填充３．６％ＱＦ—１／１０２白色硅烷化担体，在汽化温度２６０—２９０℃，柱温１７５℃，检测器（ＦＩＤ）温度２２０℃，载气（Ｎ＿２）、Ｏ＿２及Ｈ＿２流达分别为１７．５，３０５及１２ｍｌ／ｍｉｎ下，以２．４──二氯苯甲醛为内标物进行内标定量分析。试验结果表明，以该方法分析Ｒｅｉｍｅｒ－Ｔｉｅｍａｎｎ反应中的香兰素和愈创木酚具有分析周期短，精密度高，准确度好等特点。
In this paper, the chromatographic conditions of vanillin and guaiacol in Reimer-Tiemann reaction products were proposed. 3.6% QF-1/102 white silanized support was filled with a stainless steel column of 2.2 mm × 2 m, and the column was heated at a temperature of 260-290 ° C., a column temperature of 175 ° C., a detector (FID) N 2), O 2 and H 2 flow were 17.5,305 and 12 ml / min respectively, and the internal standard was determined by 2.4──Dichlorobenzaldehyde. The experimental results show that the analysis of vanillin and guaiacol in Reimer-Tiemann reaction by this method has the advantages of short analysis period, high precision and good accuracy.