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Abstract
As a complementary approach to 2D-PAGE, multidimensional liquid chromatography (MDLC) separation methods have been widely applied in all kinds of biological sample investigations. MDLC coupled with mass spectrometry is playing an important role in proteome research owing to its high speed, high resolution and high sensitivity. Among MDLC strategies, ion-exchange chromatography together with reversed-phase LC is still a most widely used chromatography in proteome analysis; other chromatographic methods are also frequently used in protein prefractionations. Recent MDLC technologies and applications to a variety of proteome analyses have achieved great development. The diversity of combinations of different chromatography modes to set up MDLC systems was demonstrated and discussed. Novel developments of MDLC techniques such as ultra-pressure system, array-based separation and monolithic material are also included in this article.
Financial & competing interests disclosure
This study was supported by the China State Key Basic Research Program Grant (No.2007CB914100/3), the National Natural Science Foundation of China (No. 20705006), the China High Technology Research Program Grant (No. 2006AA02A308) and the Shanghai Leading Academic Discipline Project B109. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
No writing assistance was utilized in the production of this manuscript.