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本文以磷钛对钙的干扰为例明确地指出了使用标准加入法时存在的问题。并较详细的观察了不同量的干扰元素对不同量钙的干扰现象及规律,从而解释了结果不可靠的原因;还观察了磷(或钛)对钙的干扰与磷(或钛)钙比的关系,由此而提出了判断分析结果是否可靠的简单方法,还提出了克服干扰得到正确结果的途径;对干扰机理也作了初步讨论。
In this paper, the interference of phosphorus and titanium to calcium as an example clearly pointed out that the use of standard addition method of the existing problems. And more detailed observation of different amounts of interfering elements of different amounts of calcium interference phenomenon and the law, thus explaining the reasons for the results are not reliable; also observed phosphorus (or titanium) of calcium interference and phosphorus (or titanium) calcium ratio The simple method of judging whether the result of the analysis is reliable or not is also put forward, and the ways of overcoming the interference to get the correct result are also put forward. The interference mechanism is also discussed preliminarily.