For an impulse source there shall be a peak reading instrument voltmeter connected directly to the electrode head, indicating continually the potential of the electrode with or without a grounded test wire in the chamber. 脉冲火花机,电压表直接接在试验电极上,显示的是测试电线没有接地的情况下的峰值电压。
In this determination, the fluoride ion solution was taken as titrant and the fluoride ion selective electrode was taken as indicating electrode. 以氟离子溶液作滴定剂,氟离子选择性电极作指示电极,在氟-铝反应没有达到平衡条件下通过恒电位配位滴定法同时测定了铁和铝。