银-二乙基二硫代氨基甲酸钠法测定铁矿石中砷溶样方式的改进

修回日期: 2006-11-15

刊出日期: 2007-10-28

Improvement of Sample Dissolution Method for the Determination of Arsenic in Iron Ores by Ag-DDTC Method

Revised Date: 15 November 2006

Publish Date: 28 October 2007

摘要: 改进了铁矿石样品溶解方法，尝试用硫-磷混酸溶解铁矿石样品，缩短了分析时间，提高了分析精度。溶解后的样品以银-二乙基二硫代氨基甲酸钠法（Ag—DDTC）用于部级标准物质测定，砷的测定结果与标准值相符；用于碱性矿石如球团样品中砷的分析，多名操作者的测定结果吻合。
- 砷 /
- 硫-磷混酸 /
- 银-二乙基二硫代氨基甲酸钠法（Ag—DDTC） /
- 样品溶解 /
- 铁矿石
Abstract: The sample dissolution method is improved through using mixed acid of sulfuric acid-phosphoric acid to dissolve iron ore samples. Arsenic in sample solution from the new sample dissolution method is then determined by Ag-DDTC method. The new method provid
- arsenic /
- sulfuric /
- acid-phosphoric /
- acid