Flame Photometric Determination of Strontium in Portland Cement
Flame Photometric Determination of Strontium in Portland Cement
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火焰光度法测定硅酸盐水泥中的锶
DOI：
10.1021/ac60102a013
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发表时间：
1955
期刊：
影响因子：
--
通讯作者：
J. Diamond
中科院分区：
文献类型：
--
作者：
J. Diamond
本文提出了一种快速、准确测定波特兰水泥中锶的火焰光度法。使用的仪器是Beck-man DU火焰光度计，带有光电倍增管附件，使用氢氧火焰。不进行预先的化学分离，因此在150至3000倍的钙存在下测定锶。在461 mg处的发射减去在466 mg处的发射被示出为存在的锶的量度。通过分析从30个州和2个外国收集的128份水泥，获得了水泥中锶含量的数据。所得值范围为0.02 - 0.39%，以氧化锶计算。超过一半的水泥含有0.03至0.10%的氧化锶，其中0.05%为模态值，0.10%为中值，0.14%为平均值。
A rapid and accurate flame photometric method has heen developed for the determination of strontium in portland cement. The instrument used is the Beck-man DU flame photometer with photomultiplier attachment, using the oxyhydrogen flame. No prior chemical separations are performed, and the strontium is therefore determined in the presence of from 150 to 3000 times as much calcium. The emission at 461 mg, minus the emission at 466 mg, is shown to be a measure of the strontium present. Data on the strontium content of cement were obtained by analyzing 128 cements collected from 30 states and 2 foreign countries. The values obtained ranged from 0.02 to 0.39%, calculated as strontium oxide. More than half the cements contained from 0.03 to 0.10% strontium oxide, with 0.05% as the modal value, 0.10% as the median, and 0.14% as the mean.