| 热解—动力学光度法测定岩石和化探样品中痕量溴 |
| |
| 引用本文： | 杨秀清.热解—动力学光度法测定岩石和化探样品中痕量溴[J].国土资源,1989(1). |
| |
| 作者姓名： | 杨秀清 |
| |
| 作者单位： | 辽宁省地质实验研究中心 沈阳 |
| |
| 摘 要： | 以五氧化二钒为熔剂,用热解分离富集痕量溴,吸收于0.036mol/l 氢氧化钾中,在1.34mol/l 硫酸和硝酸混合溶液中,溴离子催化高锰酸钾对碘的氧化,用苯萃取未反应碘,然后用硫氢酸汞—硫酸高铁铵比色法测定溴。本方法灵敏度高,远择性好,操作简便、快速,方法检出限为0.35ppm 溴,标准偏差为11.63％。
|
| 关 键 词： | 热解—动力学光度法 岩石 化探样品 痕量溴 |
DETERMINING TRACE BROMINE IN ROCKS AND CHEMICAL EXPLORATIONAL SAMPLES WITH PYROLYSIS-DYNAMICS METHOD |
| |
| Yang Xiuqing.DETERMINING TRACE BROMINE IN ROCKS AND CHEMICAL EXPLORATIONAL SAMPLES WITH PYROLYSIS-DYNAMICS METHOD[J].Land & Resources,1989(1). |
| |
| Authors: | Yang Xiuqing |
| |
| Abstract: | Pyrolysis-dynamics seperation concentrative trace bromine with VO as flux is ab-sorbed by 0.036mol/1 KOH solution, in 1.34mol/1 sulfuric acidnitric acid solution,potassium permanganate can oxidize potassium odide with bromine catalyzator. Theexcess iodine is etracted by bencene,then bromine is measured by colorimetry withmercaric thiocyanate-ammonium and forric sucpate.The method has a very high sensivity,good selection,simple operation and rapidity.The method lowest detected limit is 0.35ppm and standard deviation is 11.63. |
| |
| Keywords: | Pyrolysis-dymamics method Rocks Chemical explorational samples Trace bromine |
| 本文献已被 CNKI 等数据库收录！ |
|
