| 硫氰酸钾-十二烷基磺酸钠分光光度法测定矿石中钼 |
| |
| 引用本文： | 蒋碧仙,周正.硫氰酸钾-十二烷基磺酸钠分光光度法测定矿石中钼[J].岩矿测试,2007,26(6):500-502. |
| |
| 作者姓名： | 蒋碧仙 周正 |
| |
| 作者单位： | 西南冶金地质测试中心,四川,成都,610051 |
| |
| 摘 要： | 为使硫氰酸盐分光光度法测定矿石中钼的测定结果更稳定可靠，采用加入阴离子表面活性剂十二烷基磺酸钠的方法，对原实验加以改进。结果表明，采用改进后的方法，即使温度高于30℃时，吸光度值仍可稳定3h以上，且灵敏度有所提高。方法用于国家一级标准物质的测定，结果与标准值相符。
|
| 关 键 词： | 十二烷基磺酸钠 硫氰酸钾 分光光度法 显色反应 钼 矿石 |
| 文章编号： | 0254-5357（2007）06-0500-03 |
| 收稿时间： | 2007-01-26 |
| 修稿时间： | 2007-03-30 |
Determination of Molybdenum in Ore Samples by Spectrophotometry in Potassium Sulfocyanate-Sodium Dodecyl Sulfate System |
| |
| JIANG Bi-xian,ZHOU Zheng.Determination of Molybdenum in Ore Samples by Spectrophotometry in Potassium Sulfocyanate-Sodium Dodecyl Sulfate System[J].Rock and Mineral Analysis,2007,26(6):500-502. |
| |
| Authors: | JIANG Bi-xian ZHOU Zheng |
| |
| Abstract: | A method for the determination of molybdenum in ore samples is modified by adding anionic surfactant of sodium dodecyl sulfonate to the system to obtain more stable and reliable results from potassium sulfocyanate spectrophotometry. The results show that the absorbance values of the analytes can keep stable for at least 3 h even if the temperature is above 30 ~C. And the modified method also provides higher sensitivity. The method has been applied to the determination of molybdenum in National Standard Reference samples and the results are in agreement with the certified values. |
| |
| Keywords: | sodium dodecyl sulfonate potassium sulfocyanate spectrophotometry chromatogenic reaction molybdenum ore |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩矿测试》浏览原始摘要信息 |
| 点击此处可从《岩矿测试》下载免费的PDF全文 |
