Liquid chromatographic separation of analyte anions with iron(II) 1,10-phenanthroline as a mobile-phase additive: origin and parameters in indirect detection.

Liquid chromatographic separation of analyte anions with iron(II) 1,10-phenanthroline as a mobile-phase additive: origin and parameters in indirect detection.
复制标题

使用铁(II) 1,10-菲咯啉作为流动相添加剂对分析物阴离子进行液相色谱分离:间接检测中的来源和参数。

DOI:
10.1021/ac00156a017
复制
发表时间:
1988
影响因子:
7.4
通讯作者:
Pietrzyk,DJ
Pietrzyk,DJ
中科院分区:
化学1区
文献类型:
--
作者:
Rigas,PG;Pietrzyk,DJ

文献摘要

参考文献

被引文献

相似文献

在汉密尔顿PRP-1反相色谱柱上,以1,10-菲咯啉[Fe(phen)32+]盐为流动相添加剂,由于分析物带内的吸光度与含Fe(phen)32+盐的移动的相提供的背景吸光度不同,因此可以间接检测分析物阴离子。三个主要因素导致Fe(phen)32+浓度在分析物带内变化。这些是相对于背景的谱带内的离子强度变化、移动的相中的抗衡离子的类型(阴离子选择性)以及移动的相中的抗衡离子和分析物的浓度(质量作用)。根据条件,条带内的Fe(phen)32+浓度可以增加(阳性分析物峰)或减少(阴性分析物峰)。直接或间接影响离子强度或抗衡阴离子条件,从而影响间接光度检测和检测限的流动相变量为Fe(phen)32+浓度、溶剂组成、Fe(phen)32+提供的抗衡阴离子的类型和浓度、缓冲液和离子强度盐、pH值和进样分析物的量。用作离子相互作用试剂的金属络合物的摩尔吸光系数也影响检测限。取决于吸收检测器、分析物阴离子和参数的优化,校准提供了宽的线性动态范围和1-10 ng范围内的检测限。
Analyte anions separated on a Hamilton PRP-1 reverse-phase column using Iron (II) 1, 10-phenanthroKne [Fe (phen) 32+] salts as mobile-phase additives can be detected indirectly because absorbance within the analyte band differs from the background absorbance provided by the Fe (phen) 32+ salt con-taining mobile phase. Three major factors cause Fe (phen) 32+ concentration to change within the analyte band. These are Ionic strength change within the band relative to the back-ground, the type of counteranlon (s)(anion selectivity) In the mobile phase, and the concentration (mass action) of the counteranlon (s) and analyte anlon (s) In the mobile phase. Depending on conditions, Fe (phen) 32+ concentration within the band can either Increase (positive analyte peaks) or de-crease (negative analyte peaks). Mobile-phase variables that directly or Indirectly affect ionic strength or counteranion conditions, and consequently Influence Indirect photometric detection and detection limits, are Fe (phen) 32+ concentration, solvent composition, type and concentration of counteranlon (s) provided by Fe (phen) 32+, buffer, and Ionic strength salts, pH, and amount of Injected analyte. Molar absorptivity of the metal complex used as the ion Interaction reagent also affects detection limits. Contingent on the absorption detector, the analyte anion, and optimization of the parameters, calibration provides a broad linear dynamic range and de-tection limits within the 1-10 ng range.
C18 微盒上受污染的天然水中的 PCB 痕量富集量达到亚 ppt 水平
DOI: --
发表时间: 1987
期刊:
影响因子: --
作者:
J. Thomé;Y. Vandaele
通讯作者: Y. Vandaele
使用两个紫外检测器在传统反相柱上进行阴离子色谱分析
DOI: --
发表时间: 1984
期刊:
影响因子: --
作者:
J. Andrasko
通讯作者: J. Andrasko
DOI: --
发表时间: 1984
期刊:
影响因子: --
作者:
P. Nielsen
通讯作者: P. Nielsen
流动相中使用紫外吸收离子的反相离子对色谱
DOI: --
发表时间: 1981
期刊:
影响因子: --
作者:
M. Denkert;L. Hackzell;G. Schill;E. Sjögren
通讯作者: E. Sjögren
DOI: --
发表时间: 1984
期刊:
影响因子: --
作者:
J. Parkin;H. Lau
通讯作者: H. Lau