试验表明，采用铜作内标元素，测试方法简便，结果准确。
The test shows that the measuring method is simple and the result is accurate with cu as the interior label element.
试验研究了不同浓度钠基体对分析谱线产生的干扰和用钇作为内标元素来补偿钠基体的干扰。
The interference due to variably concentration of sodium, and using of internal standard element yttrium compensate for it were investigated.
本文介绍了选择一系列具有不同物理性质的元素谱线来研究分析元素与内标元素间的内在联系。
A series of spectral lines with different physical properties were selected for studying the intrinsic relation of the analyte to internal standard lines.
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