Assessment of Additives for Nitrogen, Carbon, Hydrogen and Sulfur Determination by Organic Elemental Analysis
Assessment of Additives for Nitrogen, Carbon, Hydrogen and Sulfur Determination by Organic Elemental Analysis
复制标题
有机元素分析测定氮、碳、氢和硫添加剂的评估
DOI：
10.1007/s00604-002-0956-y
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发表时间：
2003
影响因子：
5.7
通讯作者：
I. Casals
中科院分区：
文献类型：
--
作者：
Alejandro Marcó;R. Compañó;R. Rubio;I. Casals
摘要：本文报道了一项关于添加剂在有机元素分析中的应用的调查，该分析是对含有可能影响燃烧过程的官能团的化合物进行的。 选择了28种含有以下官能团的物质：有机氟、六氟磷酸盐、四氟硼酸盐、四苯硼酸盐、磺酸盐、膦、腈、碳化物、有机金属。分析了不同样品：添加剂比率中的六种添加剂（粉末状银、具有氧化镁的钨酸银、二氧化硅、具有氧化镁的氧化钨（VI）、粉末状锡、氧化铈（IV））。对于几乎所有测定的化合物，钨酸银与氧化镁（1：1，w/w）的混合物被证明对于氮、碳、氢和硫的分析是最有效的。
Abstract. A survey is reported on the use of additives in organic elemental analysis of compounds containing functional groups that may compromise the combustion process. 28 substances containing the following functional groups were selected: organic fluorine, hexafluorophosphate, tetrafluoroborate, tetraphenylborate, sulfonate, phosphine, nitrile, carbide, organometallic. Six additives (powdered silver, silver tungstate with magnesium oxide, silica oxide, tungsten (VI) oxide with magnesium oxide, powdered tin, cerium (IV) oxide) in various sample:additive ratios were assayed. Silver tungstate with magnesium oxide (mixture 1:1, w/w) turned out to be most efficient for the analysis of nitrogen, carbon, hydrogen and sulfur for almost all the compounds assayed.