基准试剂

恒电流库仑法测定基准试剂三氧化二砷的含量

Determination of standard reagent arsenic oxide by constant current coulometry

基准试剂纯度定值研究

Study on the certified value of purity for reference reagent

法拉第常数和基准试剂纯度的绝对测定

Faraday constant and the absolute determination of the purity of primary standard reagents

用精密库仑滴定法测定基准试剂氯化钠的纯度

The Precise Coulometric Titration Method for the Determination of the Purity of Sodium Chloride

恒电流库仑分析法测定硫酸亚铁铵等基准试剂的纯度

Determination of ferrous ammonium sulfate etc reference reagents by the constant current coulometric analysis method

GB6855-1986pH基准试剂四草酸钾

PH Basic line & Potassium tetroxalate

以标准为基础或指定一个准则或标准。GB6851-1986pH基准试剂定值通则

Based on or prescribing a norm or standard . pH Basic line & General rules for certification

用氧化锌基准试剂校正仪器是可行的。

The test result proved that the method is feasible by using zinc oxide PRM to calibrate the instrument .

作为溶剂萃取法一个补充手段，本法不失其应急之需，可作为小批量生产提供分析用基准试剂，科研急需高纯重稀土等需求之用。

As a supplementary means for solvent extraction , this method can be used for emergency cases , such as for preparing small quantities of standard reagents and high purity rare earths for scientific research .

介绍了测量不确定度的评定方法及其在基准试剂纯度、干涉滤光片波长标准物质、锌合金成分标准物质中的应用实例。

The evaluating method in the uncertainty of measurement and its application examples in the primary standard material purity , optical reference filter wavelength standard reference material , Zn-alloy component standard reference material are introduced .

标准贮备液的配制要使用基准级试剂；

The datum chemical reagents must be used in the preparations of standard solutions ;