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我们拭脸在钥蓝法测定磷的氟化钠-氧化亚踢溶液中加入少量焦性没食子酸(2 000毫升中豹加0.03克),可奴使溶液稳定一星期,避免了每天配溶液的麻烦。 (福者按:此顶极耽,稍录者献用后将桔果告祈编辑部)
We wipe the face in the key blue method determination of phosphorus sodium fluoride - oxide kicking solution by adding a small amount of coke gallate (2000 ml leopard plus 0.03 grams), can slavish the solution for a week to avoid the daily solution trouble. (Blessing by: the top of the delay, the recorder will be used after a few people will tell the editorial department)