1) to decompose ore sample in zealed and pollution-free container
无污染封闭溶样
1.
Taking the mixing liquor of nitric acid, ammonium chloride and potassium permanganate as mixing solvent to decompose ore sample in zealed and pollution-free container,metals as silver, copper,lead and zine can be determined synchronously by atomic absorption method.
本文以硝酸+氯化铵+高锰酸钾+氢氟酸为溶剂,采用无污染封闭溶样法分解试样,拟定了原子吸收法同时测定矿石中银、铜、铅、锌的新方法。
2) sealed dissolution
封闭溶样
1.
Determination of gold in roasted ore samples with sealed dissolution,quinhydrone volumedtric method;
封闭溶样氢醌容量法测定焙烧矿样中的金
3) sealed dissolution pretreatment
封闭溶样预处理
4) microwave sealed dissolution
微波封闭溶样
1.
Fast measurement of Pb in gold concentrate samples with AAS method and microwave sealed dissolution process;
微波封闭溶样原子吸收法快速测定金精矿中的铅
5) sealed vessel dissolution system
封闭溶样体系
6) contamination free decomposable specimens
无污染分解矿样
1.
This article emphasizes on the application situation of contamination free decomposable specimens in the analysis of various kinds of metals and compounds such as Au, Ag, Cu, Pb, Zn, CaO, MgO, Al 2O 3, Mn, Fe, etc.
着重阐述了无污染分解矿样在目前Au、Ag、Cu、Pb、Zn、CaO、MgO、Al2 O3 、Mn、Fe等分析中的应用概况 ,包括其分离、富集及测定方法。
补充资料:“自由市场”和封闭性的市场
自由市场亦称为开放性市场,是指商品的生产、销售或购买的集中程度不高,其变动主要受市场的自发力量即价值规律的作用支配,商品价格是在相对自由竞争的条件下形成的,但仍在程度不同的受到垄断的影响。
封闭市场是垄断控制型市场,在这种市场上,垄断者竭力限制竞争和供求自发的波动,使商品供求和价格按照自己希望的方向发展变化,获取高额利润。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条