在以天然碱为原料生产小苏打过程中,如选用聚丙烯酰胺为絮凝剂,则产品中对其单体总有微量的吸附或夹带,为分析微量的丙烯酰胺含量,本文介绍采用分光光度法测定。通过试验采用溴氧化——分光光度法,测定小苏打产品中的微量丙烯酰胺,实验方法可靠、重现性较好、操作方便、灵敏度高、测定下限可达1PPM。 In the production of sodium bicarbonate baking soda process, such as the choice of polyacrylamide flocculant, the product of its monomer there is always a trace amount of adsorption or entrainment for the analysis of trace amounts of acrylamide, this article describes the use of spectrophotometry Determination. Through the experiment using bromine oxidation - spectrophotometry, determination of trace acrylamide in baking soda product, the experimental method is reliable, the reproducibility is good, the operation is convenient, the sensitivity is high, and the determination lower limit can reach 1PPM.