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烟叶中氯的含量是鉴定烟叶品质的重要指标.由于烟叶的水浸提液呈深黄褐色,故以往常用经干、湿灰化法去色后的浸提液测定氯的含量.用干灰化法测定1个样品要花6个小时,湿灰化法也需1个半小时;而且耗电较多,操作复杂.我们试用氯电极直接测定不经去色的烟叶水浸提液的氯含量,经两年来的测试,此法比较准确和稳定.每测定1个样品只需10分钟左右;而且所用仪器简单,携带方便,基层单位的化验室或基点都能应用.
The content of chlorine in tobacco leaves is an important index to identify the quality of tobacco.As the tobacco leaves aqueous extract was dark brown, it is often used by the dry, wet ashing method to determine the color of the extract after the chlorine content with dry ash It takes 6 hours to determine a sample by the method of chemistry and 1 and a half hours to wet ashing method, more power consumption and complicated operation. We use chlorine electrodes to directly measure the chlorine Content, after two years of testing, this method is more accurate and stable.Each test a sample takes only about 10 minutes; and the instrument is simple, easy to carry, basic unit of the laboratory or the base point can be applied.