水中氟的快速测定

Study on the Preparation and Application of a New Fluoride-ion Test Paper

研究了在氟离子作用下能使其变色的显色体系,经试验选择了一种显色体系配以酸度调节剂、掩蔽剂、表面活性剂等,以层析纸为载体制成氟试纸,并对试纸的性能进行了试验,确定其使用方法和储存条件.实际水样用试纸法和国标法比较,测定结果基本符合,误差在半定量分析允许范围内.

Based on the displacement reaction of fluoride ion with chromogluic complex of zirconium (IV), a novel test paper specialized for testing fluoride ion have been prepared. The manufacturing techniques the condition for reserving of test paper were discussed. A standard color sank was made and the performance of the test paper was studies. The test paper was measured with a variety of water samples. The results obtained was consistent as compared with the ISE, methods of national standard.