本文研究了三辛基氧化膦(topo)学修饰电极预富集石墨炉原子吸收法测定水样中痕量锑。
A preconcentration on TOPO chemically modified electrode-graphite furnace AAS method has been developed for the determination of trace antimony in water samples.
由N235与路易斯碱三辛基氧膦（TOPO）组成协同萃取体系，对碱性氰化浸金贵液中金（I）协同萃取和反萃进行了研究。
This paper aims to extraction and stripping of gold(I) from alkaline cyanide leaching solution by the N235-TOPO co-extraction system.
诺基亚股票星期三在赫尔辛基上升4%以22.48欧元收盘。
On Wednesday, Nokia shares closed 4 per cent ahead at? 22.48 in Helsinki.
芬兰赫尔辛基(美联)-两个世界上最大的纸张制造商宣布解雇数千名员工，工厂关闭和减产星期三对付高。
HELSINKI, Finland (ap) - Two of the world's biggest paper makers announced thousands of layoffs, mill closures and production cuts Wednesday to counter high...
芬兰赫尔辛基(美联)-两个世界上最大的纸张制造商宣布解雇数千名员工，工厂关闭和减产星期三对付高。
HELSINKI, Finland (ap) - Two of the world's biggest paper makers announced thousands of layoffs, mill closures and production cuts Wednesday to counter high...
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