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正十六胺为载体的乳状液膜迁移分离汞(Ⅱ) 总被引:2,自引:0,他引:2
以正十六胺为载体的乳状液膜迁移分离汞 的结果表明,当膜组成为(0 02~0 030)mol/L正十六胺+3%(W/V)Span80+煤油;内相为(0 010~0 020)mol/LNaOH;外相为0 020mol/LKCL+(0 010~0 10)mol/LHCl能使汞快速有效的完全迁移;并使Hg 与Cu ,Fe ,Zn ,Co ,Ni ,Mn ,Pb ,Cd 等离子完全分离。不使用有毒害的膜溶剂甲秦或二甲苯[1-4],使用长碳链的有机胺,因而在相分离过程中避免了三相乳化现象。1.实验部分在制乳器中加入一定量Span80和正十六胺的煤油溶液,在约2000r/min转速下,加入内相试剂… 相似文献
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The multiple instance regression problem has become a hot research topic recently. There are several approaches to the multiple instance regression problem, such as Salience, Citation KNN, and MI-ClusterRegress. All of these solutions work in batch mode during the training step. However, in practice, examples usually arrive in sequence. Therefore, the training step cannot be accomplished once. In this paper, an online multiple instance regression method "OnlineMIR" is proposed. OnlineMIR can not only predict the label of a new bag, but also update the current regression model with the latest arrived bag. The experimental results show that OnlineMIR achieves good performances on both synthetic and real data sets. 相似文献
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通过乙烯基膦酸酯与氧化腈的环加成反应,合成了一系列区域专一的异噁唑啉.化合物3c的单晶X衍射证实产物为5-磷酰基异噁唑啉.目标化合物结构经核磁、电喷雾质谱和元素分析表证,生物活性测试表明这些化合物具有一定的神经氨酸酶抑制活性. 相似文献
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