Liquid chromatography strategy

Section I of this book includes chapters on the principles and practice of PLC. After this introductory Chapter 1, Chapter 2 provides information on efforts undertaken to date in order to establish the theoretical foundations of PLC. With growing availability and popularity of modem computer-aided densitometers, separation results can be obtained in digital form as a series of concentration profiles that can be relatively easily assessed and processed. From these, relevant conclusions can be drawn in exactly the same manner as in automated column chromatographic techniques. Efforts undertaken to build a theoretical foundation of PLC largely consist of adaptation of known strategies (with their validity confirmed in preparative column liquid chromatography) to the working conditions of PLC systems. 

Hogendoorn, E.A., Dijkmann, E., Baumann, B., Hidalgo, C., Sancho, J.-V., and Hernandez, F., Strategies in using analytical restricted access media columns for the removal of humic acid interferences in the trace analysis of acidic herbicides in water samples by coupled column liquid chromatography with UV detection, Anal. Chem., 71, 1111, 1999. 

How does one choose a solvent A review on the strategy for solvent selection in order to achieve extraction or liquid chromatography has appeared [25]. 

A different strategy has been applied in our work, that emphasizes the importance of DNA stability on hole transfer within double-stranded DNA. This work is based on determination of the overall yield of oxidized nucleosides that arise from the conversion of initially generated purine and pyrimidine radical cations within DNA exposed to two-photon UVC laser pulses. On the one hand, this work benefits from the excellent current knowledge of chemical reactions involving the radical cations of DNA bases, and on the other hand, from major analytical improvements that include recent availability of the powerful technique of high performance liquid chromatography-electrospray ionization-tandem mass spectrometry (CLHP-ESI-MS/MS) [16-18]. 

FIGURE 9.1 Liquid chromatography workflow strategy options in proteomics. (a) bottom-up approach (b) top-down approach (c) selective sample cleanup directly combined with chromatographic separation (d) peptide capture with affinity restricted access material. 

Hogenboom A.C., Niessen W.M.A., and Brinkman U.A., 1999a. Online solid-phase extraction-short-column liquid chromatography combined with various tandem mass spectrometric scanning strategies for the rapid study of transformation of pesticides in surface water. J Chromatogr A 841 33. 

Explores strategies for optimizing techniques such as high-performance liquid chromatography combined with mass spectrometry (HPLC-MS) or tandem mass spectrometry (HPLC-MS-MS)... 

T. Reemstsma, Liquid chromatography-mass spectrometry and strategies for trace-level analysis of polar organic pollutants. J. Chromatogr.A, 1000 (2003) 477-501. 

Reemtsma, T. Liquid Chromatography-Mass Spectrometry and Strategies for Trace-Level Analysis of Polar Organic Pollutants. J. Chromatogr. A 2003, 1000, 477-501. 

D Acquarica, L, New synthetic strategies for the preparation of novel chiral stationary phases for high-performance liquid chromatography containing natural pool selectors, J. Pharm. Biomed. Anal, 23, 3, 2000. 

Matthijs, N., Perrin, C., Maftouh, M., Massart, D.L., Vander Heyden, Y. Definition and system implementation of strategies for method development of chiral separations in normal- or reversed-phase liquid chromatography using polysaccharide-based stationary phases. 7. Chromatogr. A 2004, 1041, 119-133. 

A. Rapid Screening Strategies in Normal- and Reversed-Phase Liquid Chromatography... 

Pfeifer RF and Hill DW (1983) High-performance liquid chromatography of amino acids ion-exchange and reversed-phase strategies. Adv Chromatogr 22,37-69. 

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