Salt-induced phase separation for the determination of metals as their diethyldithiocarbamate complexes by high-performance liquid chromatography
Salt-induced phase separation for the determination of metals as their diethyldithiocarbamate complexes by high-performance liquid chromatography
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高效液相色谱法测定二乙基二硫代氨基甲酸酯络合物形式的盐诱导相分离
DOI：
10.1021/ac00137a007
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
R. Lovett
中科院分区：
文献类型：
--
作者：
B. J. Mueller;R. Lovett
用反相高效液相色谱-紫外检测法测定了二乙基二硫代氨基甲酸盐络合水溶液中的痕量铂(II)、钯(II)、Rh(III)、Co(III)、Ru(III)和Ir。通过加入饱和盐溶液，将金属络合物从水溶液中提取到乙腈中。在较宽的溶液pH范围内，大多数金属均可从水溶液中定量回收金属。金属的检出限为<；3 ng金属/毫升原始水样。对实际样品的分析具有高度的重复性和灵敏度。红外干扰铂(II)和Rh(III)的测定。建立了水溶液中铂(II)、钯(II)、Rh(III)、Ru(III)和Ir的通用分离测定方法。
Reversed-phase high-performance liquid chromatography with ultraviolet detection can be used to determine trace levels of Pt(II), Pd(II), Rh(III), Co(III), Ru(III), and Ir in aqueous solution following complexation with diethyldithiocarbamate. The metal complexes are extracted into acetonitrile from aqueous solution by the addition of a saturated salt solution. Quantitative metal recovery from aqueous solution is achievable for most metals for a wide solution pH range. Detection limits for the metals are <3 ng of metal/mL of original aqueous sample. Analyses of real samples are highly reproducible and sensitive. Ir an interfere in the determination of Pt(II) and Rh(III). A general protocol for chromatographic separation and determination of Pt(II), Pd(II), Rh(III), Ru(III), and Ir in aqueous solution is presented.