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2-Dimensional Chromatography for Macromolecular
Molar Mass and Structure Determination

REVIEW: A primer in 2Dimensional Chromatography

In 2D chromatography, different techniques are essentially combined to achieve a higher degree of separation. eg. coupled GPC-HPLC;  HPLC (to separate functional groups) and GPC to separate according to size. 

2D is useful for analysis of complex polymer systems like polymer blends, copolymers, branched polymers and proteins.

Where to purchase a 2D system?
PSS can provide you with all of the necessary components, including software, the column chemistry, valving and transfer loops, do the installation, and show you how to operate the 2D-LC system. You need to provide or purchase the LC instrument for the 1st dimension, (injector  and gradient pump), and a pump for the 2nd dimension (GPC separation), as well as a  detector, (usually an ELSD, but a UV detector is also used on occasion).

Ordering information
WinGPC Unity Software                     400-0073
Module for 2D Chromatography         400-1008
Universal Data Center UDC810          401-0018
Upgrade 1, to 2 GPC                         400-0301
8-Port transfer Valve                         409-9012
Optional Report Designer                   400-1001


Analytical Services
PSS offers the development of 2-D applications and performs the analysis for you, with our special software for data acquisition, quantitative interpretation and data plotting. Please forward a sample form and or fill out our contact form.

WinGPC Unity Module for 2D Chromatography




Contour Map and 3-D views    

Principles and use of 2D chromatographyhave been sumarized in A primer in 2Dimensional Chromatography  which contains:

1. Basic Concepts Review

2. Why use hyphenated techniques
    When it is useful to combine GPC and  HPLC into one technique
    Why use HPLC for 1st- Dimension Separation

3.  How 2D-LC works
    Schematic diagram of a 2D-LC system
    How to collect and process data
    What the processed data look like
    Minimum Requirements for a 2D-LC System

4. 2D-LC Sources and Resources
   Reference publications about 2D-LC Analysis of Complex Polymers


References
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2 Augenstein, M.; Stickler, M.; Makromol. Chem.191 (2) (1990) 415-428.
3 Mori, S. J. Chromatogr. A 503 (1990) 411-419.
4 Glöckner, G., Gradient HPLC of Copolymers and Chromatographic Cross-Fractionation,
Springer: Berlin Heidelberg, 1991.
5 Kilz, P; Krüger, R.P.; Much, H.; Schulz, G.;  Polym. Mater. Sci. Eng. 69 (1993) 114.
6 Kilz, P.; Krüger, R.P.; Much, H.; Schulz, G.; Advan. Chem. Ser. 247 (1995) 223-241.
7 Schunk, T.C.; Long, T.E.; J. Chromatogr. A 692 (1995) 221-232.
8 Pasch, H.; Trathnigg, B.; HPLC of Polymers; Springer: Heidelberg, 1997.
9 Adrian, J.; Braun, D.; Pasch, H.; LC-GC Int. 11 (1998) 32.
10 Adrian, J.; Braun, D.; Pasch, H.; Angew. Makromol. Chem. 267 (1999) 82–88.
11 Schure, M.R.; Anal. Chem. 71 (1999) 1645- 1657.
12 Kilz, P.; Pasch, H.; Encyclopedia of Analytical Chemistry, (R.A. Meyers, ed.) Wiley, Chichester, 2000.
13 Siewing, A.; Schierholz, J.; Braun, D.; Goetz Hellmann, G.; Pasch, H. Macromol. Chem. Phys. 202 (2001) 2890-2894.
14 Pasch, H.; Mequanint, K.; Adrian, J. e- Polymers 005 (2002).
15 Biela, T.; Duda, A.; Penczek,S.; Rode, K.; Pasch, H. J. Polym Sci, Part A: Polym Chem. 40(16) (2002) 2884-2887.
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17 Siewing, A.; Lahn, B.; Braun, D.; Pasch, H.; J.  Polym. Sci. Polym. Chem. 41 (2003) 3143.
18 Heinz, L.C.; Siewing, A.; Pasch, H.; e-polymers 065 (2003)
19 Kilz, P. Chromatographia 58 (2003) 1-12 .
20 Li, M.; Jahed, N. M.; Min, K.; Matyjaszewski,  K. Macromolecules 37 (2004) 2434.
21 Lutz, J.-F.; Jahed, N.; Matyjaszewski, K. J. Polym. Sci., Part A: Polym. Chem. 42 (2004)
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22 Pasch, H.; Adler, M.; Rittig, F.; Becker, S. Macromol. Rapid Commun. 26 (2005) 438–444.
23 Jiang, X.; van der Horst, A.; Lima, V.; Schoenmakers, P.J. J. Chromatogr. A 1079 (2005)
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24 Adler, M.; Rittig, F.; Becker, S.; Pasch, H Macromol. Chem. Phys. 206 (2005) 2269-2277.
25 Pasch, H.; Adler, M.; Knecht, D.; Rittig. F; Lange, R. Macromol. Symp. 231 (2006) 166-177.