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High performance ion chromatography of transition metal chelate complexes and aminopolycarboxylate ligands. J Chromatogr A 2013; 1272:26-32. [DOI: 10.1016/j.chroma.2012.11.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 11/19/2012] [Accepted: 11/21/2012] [Indexed: 11/22/2022]
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2
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Hajós P, Horváth K. Equilibrium-based approach for prediction of matrix-related interferences in anion chromatography. J Chromatogr A 2008; 1198-1199:101-6. [DOI: 10.1016/j.chroma.2008.05.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Revised: 04/29/2008] [Accepted: 05/08/2008] [Indexed: 10/22/2022]
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3
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Horváth K, Olajos M, Felinger A, Hajós P. Retention controlling and peak shape simulation in anion chromatography using multiple equilibrium model and stochastic theory. J Chromatogr A 2008; 1189:42-51. [PMID: 17719052 DOI: 10.1016/j.chroma.2007.07.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2007] [Revised: 07/18/2007] [Accepted: 07/23/2007] [Indexed: 11/25/2022]
Abstract
The stochastic theory of chromatography and an equilibrium based approach were used for the prediction of peak shape and retention data of anions. This attempt incorporating the potential advantages of two different chromatographic phenomena for analytical purposes. It is an integrated method to estimate kinetic and thermodynamic properties for the same chromatographic run of ions. The stochastic parameters of eluted anions, such as the residence time of the molecule on the surface of the stationary phase, and the average number of adsorption steps were determined on the basis of a retention database of organic and inorganic anions (formate, chloride, bromide, nitrate, sulphate, oxalate, phosphate) obtained by using carbonate/bicarbonate eluent system at different pHs (9-11) and concentrations (7-13 mM). In the investigated IC system the residence times are much higher and the average number of sorption steps is somewhat smaller than in RP-HPLC. The simultaneous application of the stochastic and the multispecies eluent/analyte model was utilized to peak shape simulation and the retention controlling of various anions under elution conditions of practical importance. The similarities between the measured and the calculated chromatograms indicates the predictive and simulation power of the combined application of the stochastic theory and the multiple species eluent/analyte retention model.
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Affiliation(s)
- Krisztián Horváth
- University of Pannonia, Department of Analytical Chemistry, H-8200 Veszprém, Egyetem utca 10, Hungary.
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Fernández RG, García Alonso JI. Separation of rare earth elements by anion-exchange chromatography using ethylenediaminetetraacetic acid as mobile phase. J Chromatogr A 2008; 1180:59-65. [DOI: 10.1016/j.chroma.2007.12.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2006] [Revised: 10/24/2007] [Accepted: 12/03/2007] [Indexed: 11/25/2022]
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5
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Ghoulipour V, Husain S. Quantitative TLC of toxic elements on inorganic ion-exchangers. VI. Separation and determination of cadmium. JPC-J PLANAR CHROMAT 2006. [DOI: 10.1556/jpc.19.2006.3.15] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Chen Y, Jing L, Li X, Zhu Y. Suppressed anion chromatography using mixed zwitter-ionic and carbonate eluents. J Chromatogr A 2006; 1118:3-11. [PMID: 16458910 DOI: 10.1016/j.chroma.2005.12.074] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2005] [Revised: 12/14/2005] [Accepted: 12/15/2005] [Indexed: 11/28/2022]
Abstract
Effect of mixed eluents which contain zwitterions such as 2-(N-morpholino)ethanesulfonic acid (MES), 3-(N-morpholino)propanesulfonic acid (MOPS), 2-(cyclohexylamino)ethanesulfonic acid (CHES) and 3-(cyclohexylamino)-1-propanesulfonic acid (CAPS) and carbonate for suppressed conductivity ion chromatography (IC) were studied. The retention behaviors of all species were affected with different anion exchange columns when adding some zwitterion into carbonate eluent. The retention time of all species, especially those of strong retetion, was substantially shortened in AS14A column with either Na(2)CO(3)/CHES or Na(2)CO(3)/CAPS as eluent while a general increase in retetion time was noticed in AS9-HC column. Low pH of eluent was achieved when zwitterion was added. Without much changes in the background conductivity after suppressed, CHES could be used as suppressed conductivity ion chromatography eluent for determination of species unstable in strong alkaline, such as determination of phosphate in heteropoly acid (HPA) samples in AS14 column. The mixed eluent could also affect the selectivity when it was applied to the study of simultaneous separation of anions and cations in AS9-HC column by suppressed ion chromatography.
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Affiliation(s)
- Yongjing Chen
- Department of Chemistry, Xixi campus, Zhejiang University, Hangzhou 310028, China
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7
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Chapter 12 Electrospray ionization mass spectrometry. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s0166-526x(00)80022-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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8
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Krokhin OV, Adamov AV, Hoshino H, Shpigun OA, Yotsuyanagi T. Separation selectivity of some ethylenediaminetetraacetic acid and cyclohexane-1,2-diaminetetraacetic acid complexes in column and ion electrokinetic chromatography. J Chromatogr A 1999; 850:269-76. [PMID: 10457487 DOI: 10.1016/s0021-9673(99)00371-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The complexes of Mn2+, Cd2+, Fe3+, Pb2+, Ni2+, Co2+, Zn2+ and Cu2+ with EDTA and cyclohexane-1,2-diaminetetraacetic acid (CDTA) were separated and detected in column and ion electrokinetic chromatography with suppressed conductivity and direct UV detection, respectively. In column ion chromatography (IC) these complexes were separated on an IonPac AS4A anion-exchange column (Dionex, USA). Parameters of carrier electrolyte, which were examined in the ion electrokinetic chromatography (IEKC) mode, include polymer and sulfate concentrations. In IEKC separation selectivity of complexes with poly(diallyldimethylammonium) cation as modifier is similar as for an IonPac AS4A column both for EDTA and CDTA chelates. It was shown that the ion-exchange capacity of the electrokinetic system is more than 100-times lower than the capacity of the IC column for the same peak resolution. In comparison with column main advantages of electrokinetic version are high separation efficiency (220,000-390,000 theoretical plates) and the absence of the analyte interaction with the sorbent matrix.
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Affiliation(s)
- O V Krokhin
- Chemistry Department, Lomonosov Moscow State University, Russia
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9
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Bruzzoniti MC, Mentasti E, Sarzanini C. Simultaneous determination of inorganic anions and metal ions by suppressed ion chromatography. Anal Chim Acta 1999. [DOI: 10.1016/s0003-2670(98)00801-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Bruzzoniti MC, Mentasti E, Sarzanini C. Carboxylic acids: prediction of retention data from chromatographic and electrophoretic behaviours. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1998; 717:3-25. [PMID: 9832237 DOI: 10.1016/s0378-4347(98)00251-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A review of the main results reached in the prediction of retention data of carboxylic acids, inferred by their chromatographic and electrophoretic behaviour, is presented. Attention has been focused on the main separation methods used in carboxylic acids analysis, that is ion-exclusion, anion-exchange, reversed-phase (RP) liquid chromatography and capillary electrophoresis. Papers proposing mechanistic models as well as chemometric and multilayer feed-forward neural network analysis of ion chromatography (IC) and RP chromatographic retention data were reviewed. Principal component analysis, PCA, sequential simplex method and simultaneous modelling of response surfaces through simple nonlinear models (not related to equilibria involved in retention) have been considered. Computer simulations for the prediction of retention data have also been discussed. A quick overlook on the prediction of capacity factors of analytes by less common determination methods such as thin-layer, gas chromatography and supercritical fluid chromatography has also been done.
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Affiliation(s)
- M C Bruzzoniti
- Department of Analytical Chemistry, University of Turin, Italy
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11
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Alumaa P, Pentchuk J. Ionic strength dependence of heavy metal tartrate complex stabilities. Chromatographia 1998. [DOI: 10.1007/bf02466789] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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13
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Janoš P. Retention models in ion chromatography: the role of side equilibria in ion-exchange chromatography of inorganic cations and anions. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(97)00696-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Enhancing the quality of information obtained by a comparison between experimental and deconvolved peak parameters in ion chromatography. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(97)00787-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Use of cationic polymers for the simultaneous determination of inorganic anions and metal-4-(2-pyridylazo)resorcinolato chelates in kinetic differentiation-mode capillary electrophoresis. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(97)00420-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Studies on the combination of ion chromatography-particle-beam mass spectrometry with capillary columns. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(97)00023-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Bruzzoniti MC, Mentasti E, Sarzanini C, Hajós P. Ion chromatographic separation of car☐ylic acids prediction of retention data. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(97)00249-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Hajós P, Révész G. Alkanesulfonate homologous series as eluent components in anion chromatography Novel eluent selection system for monovalent analytes. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(97)00077-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Dorsey JG, Cooper WT, Siles BA, Foley JP, Barth HG. Liquid Chromatography: Theory and Methodology. Anal Chem 1996. [DOI: 10.1021/a19600202] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John G. Dorsey
- Department of Chemistry, Florida State University, Tallahassee, Florida 32306-3006
| | - William T. Cooper
- Department of Chemistry, Florida State University, Tallahassee, Florida 32306-3006
| | - Barbara A. Siles
- Department of Chemistry, College of William and Mary, Williamsburg, Virginia 23187-8795
| | - Joe P. Foley
- Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085-1699
| | - Howard G. Barth
- Central Research and Development Department, E. I. du Pont de Nemours & Company, P. O. Box 80228, Experimental Station, Wilmington, Delaware 19880
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Janvion P, Motellier S, Pitsch H. Ion-exchange mechanisms of some transition metals on a mixed-bed resin with a complexing eluent. J Chromatogr A 1995. [DOI: 10.1016/0021-9673(95)00576-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Sarzanini C, Sacchero G, Mentasti E, Hajós P. Studies on the retention behaviour of metal-EDTA complexes in cation chromatography. J Chromatogr A 1995. [DOI: 10.1016/0021-9673(95)00194-r] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Evaluation of 1,2-diaminocyclohexanetetraacetic acid as eluent in the determination of inorganic anions and cations by ion chromatography. J Chromatogr A 1995. [DOI: 10.1016/0021-9673(95)00028-l] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Papoff P, Ceccarini A, Carnevali P. Preliminary tests to select operating conditions for the accurate determination of stability constants by cation-exchange chromatography: the Cd2+Cl− and Cd2+NO3− systems. J Chromatogr A 1995. [DOI: 10.1016/0021-9673(95)00205-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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