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酚类化合物是环境大气和室内空气中常见的污染物,主要来源于工业废气,也来自汽车尾气和香烟烟雾,此外由于医院使用“来苏儿”消毒。空气中也存在一定量的酚。测定空气中酚类化合物的方法有多种,目前国内应用较为普遍的为4—氨基安替比林比色法。该方法灵敏、操作简单,但由于使用0.02%碳酸钠溶液作吸收液,空气中酸性物质干扰严重,因而限制了该法的使用。本文参考有关文献,针对原方法抗干扰能力差的弱点,将吸收液改为0.1ml/L氢氧化钠溶液,并对反应条件进行优选,建立了改进的4—氨基安替比林分光光度
Phenolic compounds are common pollutants in the ambient atmosphere and indoor air, mainly from industrial waste gas, but also from automobile exhaust and cigarette smoke. In addition, phenols are sterilized by the hospital using “Sue Er”. There is also a certain amount of phenol in the air. Determination of phenolic compounds in the air there are many ways, the more common domestic application of 4-amino antipyrine colorimetry. The method is sensitive and simple to operate. However, the use of 0.02% sodium carbonate solution as an absorption liquid causes serious interference of acidic substances in the air, thus limiting the use of the method. In this paper, reference to the literature, in view of the weakness of the original method of poor anti-interference ability, the absorption solution was changed to 0.1ml / L sodium hydroxide solution, and the reaction conditions were optimized to establish an improved 4-aminoantipyrine spectrophotometry