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盐酸介质
    Palladium in 1. 0 mol/L HCL media was quantitatively extracted with 0. 30mol/L DOSO -toluene solution.
    本文研究了二正辛基亚砜(DOSO)萃取紫外分光光度法测定样品中微量钯的分析方法。 结果表明,在1.0mol/L盐酸介质中.
    EDTA+TEA is used to eliminate the interferences, in HCl media, with La as releaser.
    选用盐酸介质,镧作释放剂,用EDTA+三乙醇胺消除干扰.
    The sample was digested with HNO 3-H 2O 2.The hydride was generated in 3mol·L -1 HCl media with 2%(W/V)KBH 4 as a reducing agent. The experimental conditions of microwave digestion and prereduction were studied.
    硝酸 -过氧化氢消解样品 ,在3mol· L-1盐酸介质中产生氢化物 ,2 % (W/V) KBH4为还原剂 ,研究了微波消解条件、预还原条件。
    The voltammetric properties of polyaniline on ultramicroelectrode in HCl media and the dependence of the peak current (i p) a on the polymerization charge(Q p) and the sweep rate are discussed. When the value of Q p is relatively small, the modified electrode behaves as a thin film coated electrode, while Q p is large, the peak current (i p) a is controlled by diffusion.
    本文探讨了盐酸介质中,聚苯胺在超微电极上的伏安性质,峰电流(ip)a与聚合电量(Qp)、扫描速率(v)等关系,在Qp较小时,具有薄膜电极特性,Qp很大时峰电流受扩散控制.
    The volume and sequence of adding thiourea complex, as masking reagent, are investigated for removing interference of 2mg Pt. The interference of 3.5mg Sn is removed by adopting HCl media at 3mol/L acidity.
    改换成盐酸介质,调整酸度为3mol/L,消除了3.5mg锡的干扰.对几批催化剂样品中砷的测定,相对标准偏差小于7.5%,加标回收率在103%~107%.
    A method for determining trace As and Hg in calcined magnesite by hydride generation -atomic fluorescence spectrom- etry was studied. The digestion system of HNO3 -HCl was evaluated. The hydride generation occurred in 0.8mol/L HCl media with 2% KBH4 as a reduction reagent.
    用氢化物-原子荧光光谱法测定轻烧镁中的As和Hg,采用硝酸-盐酸体系消解样品,在0.8mol/L的盐酸介质中,以2%硼氢化钾为还原剂,考查了预还原条件、载气、屏蔽气流速及共存元素干扰的影响。
 

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