Recent trends in CE of inorganic ions: From individual to multiple elemental species analysis

Abstract

The major methodological developments in CE related to inorganic analysis are overviewed. This is an update to a previous review article by the author (Timerbaev, A. R., Electrophoresis 2004, 25, 4008-4031) and it covers the review work and innovative research papers published between January 2004 and the first part of 2006. As was underlined in that review, a growing interest of analytical community in providing elemental speciation information found a sound response of the CE method developers. Presently, almost every second research paper in the field of interest deals with element species analysis, the use of inductively coupled plasma MS detection and biochemical applications being the topics of utmost research efforts. On the other hand, advances in general methodology traditionally centered on a CE system modernization for improvements in sensitivity and separation selectivity have attracted less attention over the review period. While there is no indication that inorganic ion applications would surpass by the developmental rate the more matured analysis of organic analytes, CE can now be seen as an analytical technique to be before long customary in a number of inorganic analysis arenas.

Inorganic analysis using CE: Advanced methodologies to face old challenges

“…This title section has been long a healthy element of our biennial review work on CE of inorganic species . However, in the latest account we have noted a decline in the development of new detector designs for conventional CE.…”

“…This title section has been long a healthy element of our biennial review work on CE of inorganic species [5][6][7][8][9][10]. However, in the latest account [10] we have noted a decline in the The separation mode is assumed to rest upon formation of ion association complexes with different mobilities [49] Two cationic polymers added to BGE Poly(ethyleneimine) and hexadimethrine bromide…”

“…Aimed to provide the reader with an update to a series of reviews started in 1997 by Macka and Haddad [4] and continued by Timerbaev and coauthors [5][6][7][8][9][10], this paper maintains a biennial format, reviewing relevant documents published between January 2011 and December 2012. However, several topics are excluded or given an abridged Figure 1.…”

Simultaneous determination of rare earth elements in ore and anti-corrosion coating samples using a portable capillary electrophoresis instrument with contactless conductivity detection

“…This technique has been repeatedly employed for speciation of metallic ions in different sample matrices. Reviews on applications of CE for metal species determination in environmental and biological samples can be found in [11][12][13][14][15]. Indeed, the simplest format of the technique, namely capillary zone electrophoresis (CZE) has been reported for the determination of REEs in different matrices, using UV-vis (UV-vis) detection [16][17][18][19][20][21][22][23], laser induced fluorescence (LIF) detection [24,25], mass-spectrometric detection [26] or detection by ICP-MS [27,28].…”

Rapid Separation and Quantification of Iron in Uranium Nuclear Matrix by Capillary Zone Electrophoresis (CZE)

“…Ever since the first paper concerning the indirect detection of inorganic ions by using CE in 1967 [10], the application of CE to the separation and determination of inorganic substances has increased rapidly and many papers have been published and some of critical reviews have also been summarized [11][12][13][14][15]. Different approaches have been reported to realize the full potential of CE for separation of metal ions by CE.…”