The solutions may be prepared either using eithera standard solution or spiked solution or by the method of standard addition.
可以使用标准溶液或加标溶液，或者通过标准加入法制备的溶液。
The method of standard addition is employed in the blank and the sample solutions with addition of releasing agents for determining trace amounts of calcium in steel.
采用混合释放剂，及空白与试液都以标准加入法测定、扣除空白值的方法测定钢中微量钙。
The calculating formula for the measuring relative error of standard addition method of ion selective electrode was obtained.
从理论上导出了离子选择性电极一次标准加入法测量结果的相对误差计算公式。
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