液膜技术提取锌（Ⅱ）

Experiment to Extract Zn(Ⅱ)by LM Separation

在最近几年，美国化学家Ｎ·Ｎ·Ｌｉ提出的液膜技术已广泛应用于许多领域，如：水治、环保、医药、卫生、有机合成等等，然而，有关液膜技术分析的途径的报道很少，在这篇论文中，我们通过正交实验和单个因素实验，研究影响液膜稳定性的一些因素和条件。结果表明，液膜技术在加快物质的传递速度、高度选择性等方面有更大的优势，与原子吸收光谱结果结合，得到的提锌（Ⅱ）率会更精确。

In recent years,liquid membrane(LM)seraration technique proposed by Li haswidely been aprlied to many fields such as hydrornetallurgy,environmental protection,medicineand hygiene,organic systhesis,etc,However,onlg a few reports on the application of LM serara-tion technique to the trace analysis have been pablished,In this paper, we studied the stability ofLM through orthogond and singe factor exper iments we also studied some factors and conditionswhich affect the stability on LM. separation technique has many excellent advantages such asspeeding up mass transfer mate, simplifying operation performance,highs selctivity and so oncomioning with the Flame Atomic Absorption Spctrscory,the trace Zine at ppb level ct3n be deter-mined accurately.