对空气中吡啶的测定,目前国内在《空气和废气监测分析方法》(简称甲法)和《车间空气监测检验方法》(简称乙法)内均以巴比妥酸比色法为推荐方法,我们在实际工作中发现两法的原理与方法虽相同,但测定步骤有所不同而产生了不同的结果。为此,对两法测定步骤进行了一系列比较试验。现报告如下。 Determination of pyridine in the air, at present in the “air and exhaust monitoring analysis method” (referred to as A) and “workshop air monitoring test method” (referred to as B method) are barbituric acid colorimetric method for the recommended method, In practice, we found that the principles and methods of the two methods are the same, but the measurement steps are different and produce different results. To this end, a series of comparative tests have been carried out on the two steps of determination. The report is as follows.