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近来环境物质中~(90)Sr活性水平低到必须处理大量样品才能获得有意义的分析结果,但这会引入大量干扰离子,如钙.本文改进了从大量钙中分离出锶的方法,不再采用发烟硝酸,但保留了发烟硝酸法的优点,可得到纯净的锶盐,避免了使用发烟硝酸的危险操作,简化了分析步骤,从而达到简便、经济、省时,适用于由于高钙含量引起分析困难的固体样品.
Recently, the activity level of ~ (90) Sr in environmental substances is so low that large numbers of samples must be processed to obtain meaningful analytical results, but this will introduce a large number of interfering ions such as calcium.This paper improves the method of strontium separation from large amounts of calcium, And then use fuming nitric acid, but retained the advantages of fuming nitric acid method can be pure strontium salt, to avoid the use of fuming nitric acid dangerous operation, simplifying the analysis steps to achieve simple, economical, time-saving, suitable for High calcium content causes analytical difficulties in solid samples.