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Ion Chromatography by James S. Fritz, Douglas T. Gjerde

By James S. Fritz, Douglas T. Gjerde

This all-new variation of the hugely winning first variation incorporates a wealth of up to date info in this significant analytical approach. Ion-exchange, ion-exclusion, and ion-pair chromatography are taken care of including their detection equipment, and a dialogue of quantitative research can be given. the full diversity of program chances of this system is defined and illustrated with various chromatograms. unique chapters are featured on purposes in environmental research, medical chemistry in addition to within the nutrition and beverage undefined. From reports of past versions: This quantity may be hugely instructed to either the skilled person and the newcomer within the box of ion chromatography. Zeitschrift fuer Wasser- und Abwasserforschung every body who's actively facing ion chromatography can't come up with the money for to overlook this publication. Laborpraxis This publication is a beneficial reduction to all scientists wishing to paintings with a bit of luck with those various tools, in addition to practitioners who hire those concepts on a day by day foundation.

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Silica-based cation exchangers are generally prepared by reacting silica particles with an appropriate chlorosilane or methoxysilane. A common type of silica catex has the structure: I Silica - 0 - Si - C H r ( 0 ) - SOiH' I In both of these materials, the sulfonate group is chemically bonded to the solid matrix. However, the H+ is attracted electrostatically to the -SO3- group and can undergo exchange reactions with other ions in solution. For example: Solid-S03-H+ + Na+ 2 Solid-S03-Na+ + Solid-S03-Na+ + Mg2+ + + H+ (Solid-SOg):!

2692,1956. F. M. Rush and K. A. Kraus, Anion exchange studies. XXVII. Adsorbability of a number of elements in HC1-HF solutions, J. Am. Chem. , 82,339,1960. J. B. Headridge and E. J. Dixon, The analysis of complex alloys with particular refercnce to niobium, tantalum and tungsten, Analyst, 87,32,1962. E. A. Huff, Anion exchange study of a number of elements in nitric-hydrofluoric acid mixtures. Anal. 1964. L. Danielsson, Adsorption of a number of elements from HNO3-HF and H2S04-HFsolutions by cation and anion exchange, Acta Chem.

Heumann, Ion exchange in nonaqueous and mixed media, Critical Revs. in Aizul. Chem.. 2. 425,1971. J. S. 287, 1968. Ion Chromatography by James S. Fritz & Douglas T. 1 Introduction A cation exchanger is a solid particulate material with negatively charged functional groups arranged to interact with ions in the surrounding liquid phase. For convenience, we will often refer to a cation exchanger as a "catex". The most common type of catex contains sulfonic acid groups. Cross-linked polystyrene particles are converted to a catex by sulfonation with concentrated sulfuric acid.

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