The analytical method for sodium methyl mercaptide was established based on the reaction in quantity between methyl mercaptan and iodine at the base condition.
采用甲硫醇与碘在碱性条件下定量反应生成双硫醚的反应原理，建立了甲硫醇钠的定量分析方法。
This text passes the output reason of the analytical concrete quantity common failing, putting forward the prevention and cure measure.
本文通过分析混凝土质量通病产生的原因，提出防治措施。
Point out that traced key of value of a quantity is the systematical study on certification methods and quality assurance technique of analytical process.
指出了量值溯源的关键是对定值方法和分析过程质量保证技术进行系统的研究。
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