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我们用红外光谱仪和核磁共振波谱仪解决了一些生产问题。现将分析实例分述如下。分析实例实例1。甲基叔丁醚的异产品分析。北京化工厂有一批甲基叔丁醚的沸点不对。经核磁共振波谱法(简称为NMR法)分析发现原料有问题,不是溴代叔丁烷,实为溴代正丁烷。因而导致产品的结构不对。这批异产品的原料和成品的核磁共振图(图1)位于右侧部分。它们的谱图较复杂,谱峰很多。如按溴代叔丁烷、甲基叔丁醚的
We solved some production problems with infrared spectroscopy and nuclear magnetic resonance spectroscopy. Analytical examples are now described below. Analyze instance example 1. Iso - product analysis of methyl tert - butyl ether. Beijing Chemical Factory has a number of methyl tert-butyl ether boiling point wrong. By NMR spectroscopy (referred to as NMR method) analysis of raw materials found that there is a problem, not bromine tert-butane, is actually brominated n-butane. As a result, the structure of the product is not correct. The raw materials and the finished product’s NMR charts (Figure 1) for these isolates are on the right. Their spectra are more complicated and have many peaks. Such as bromine tert-butane, methyl tert-butyl ether