Elskamp C J, Schultz G R
Am Ind Hyg Assoc J. 1986 Jan;47(1):41-9. doi: 10.1080/15298668691389324.
A sampling and analytical procedure for methyl-, dimethyl-, ethyl-, and diethylamine was developed in order to avoid problems typically encountered in the sampling and analysis of low molecular weight aliphatic amines. Samples are collected with adsorbent tubes containing Amberlite XAD-7 resin coated with the derivatizing reagent, NBD chloride (7-chloro-4-nitrobenzo-2-oxa-1,3-diazole). Analysis is performed by high performance liquid chromatography with the use of a fluorescence and/or UV/visible detector. All four amines can be monitored simultaneously, and neither collection nor storage is affected by humidity. Samples are stable at room temperature for at least two weeks. The methodology has been tested for each of the four amines at sample loadings equivalent to air concentration ranges of 0.5 to 30 ppm for a sample volume of 10 liters. The method shows promise for determining other airborne primary and secondary low molecular weight aliphatic amines.
为避免在低分子量脂肪族胺的采样和分析过程中遇到的典型问题，开发了一种用于甲基胺、二甲胺、乙胺和二乙胺的采样与分析程序。使用装有涂有衍生试剂NBD氯化物（7-氯-4-硝基苯并-2-恶唑-1,3-二氮杂茂）的Amberlite XAD-7树脂的吸附管收集样品。通过使用荧光和/或紫外/可见检测器的高效液相色谱法进行分析。所有四种胺都可以同时监测，并且采集和储存均不受湿度影响。样品在室温下至少两周内稳定。该方法已针对四种胺中的每一种在相当于10升样品体积、空气浓度范围为0.5至30 ppm的样品负载量下进行了测试。该方法有望用于测定其他空气中的伯和仲低分子量脂肪族胺。
