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Publications

T&T GPC/SEC: Finding the Right Standards
Polystyrenes (PS) are the most commonly used reference standards in gel permeation chromatography/size-exclusion chromatography (GPC/SEC) for nearly all organic GPC/SEC separations including high…
Language
Publication Number
20447
Publication Type
Tip&Trick
Source
The Column
Year
2015
Publication date
18.12.2015
Issue
6
Author
D. Held, J. Preis, F. Gores
T&T GPC/SEC: Flow Marker - An Easy Concept to Increase Reproducibility
Experienced gel permeation chromatography/size-exclusion chromatography (GPC/SEC) users know that equilibration of the columns takes much longer than the time needed by the pump to produce a constant…
Language
Publication Number
20449
Publication Type
Tip&Trick
Source
The Column
Year
2016
Publication date
21.04.2016
Issue
4
Author
D. Held, W. Radke
T&T GPC/SEC: From a Chromatogram to the Molar Mass Distribution
Molar masses cannot be measured directly by gel permeation/size-exclusion chromatography (GPC/SEC). The direct results of a GPC/SEC run are chromatograms or elugrams, which show the detector signal…
Language
Publication Number
20434
Publication Type
Tip&Trick
Source
The Column
Year
2014
Publication date
17.12.2014
Issue
12
Author
P. Kilz, D. Held
T&T GPC/SEC: GPC/SEC for Membrane Analysis
Membranes play an important role in living species as well as in technical processes, including in human care (for example, in kidney treatment). This instalment of Tips & Tricks discusses gel…
Language
Publication Number
20445
Publication Type
Tip&Trick
Source
The Column
Year
2016
Publication date
28.10.2016
Issue
10
Author
D. Held, P. Kilz
T&T GPC/SEC: High Temperature GPC versus Ambient GPC
Gel permeation chromatography/size-exclusion chromatography (GPC/SEC) is the standard technique to determine the molar mass distribution of synthetic macromolecules. However, some kinds of polymers…
Language
Publication Number
20479
Publication Type
Tip&Trick
Source
The Column
Year
2019
Publication date
29.08.2019
Issue
8
Author
D. Held, P. Montag
T&T GPC/SEC: How do I calibrate a GPC/SEC system?
GPC/SEC is the method of choice for characterizing macromolecules by distribution (MMD). It is an easy to use method and measurements can be done using standard LC equipment, proper high resolution…
Language
Publication Number
20273
Publication Type
Tip&Trick
Source
The Column
Year
2008
Publication date
04.12.2008
Issue
6
Author
D. Held
T&T GPC/SEC: How do I find the optimum sample concentration and injection volume for my GPC/SEC measurements?
Larger signals and improved signal-to- noise ratios can be achieved by increasing the sample concentration or the injection volume. However, a large signal is not always the best answer and does not…
Language
Publication Number
20246
Publication Type
Tip&Trick
Source
The Column
Year
2007
Publication date
01.03.2007
Issue
2
Author
T. Hofe
T&T GPC/SEC: How does the Flow rate influence GPC/SEC results
Molar mass determination in GPC/SEC using a calibration routine with reference materials is based on the precise measurement of the elution volume of the sample. Neither the peak height, nor the peak…
Language
Publication Number
20315
Publication Type
Tip&Trick
Source
The Column
Year
2009
Publication date
09.07.2009
Issue
6
Author
T. Hofe, D. Held
T&T GPC/SEC: How GPC/SEC Can Help to Reduce PET Plastic Waste
One of the major problems with plastics is recycling. Only a few materials can be recycled and the acceptance of recyclates is sometimes low. Gel permeation chromatography/size-exclusion…
Language
Publication Number
20478
Publication Type
Tip&Trick
Source
The Column
Year
2019
Publication date
13.06.2019
Issue
6
Author
D. Held, P. Kilz
T&T GPC/SEC: How to Care for Your GPC/SEC Instrument
Columns are at the heart of a gel permeation/size-exclusion chromatography (GPC/SEC) system. Software is used to evaluate the data, to understand and present the results, and to act as an interface…
Language
Publication Number
20432
Publication Type
Tip&Trick
Source
The Column
Year
2015
Publication date
29.10.2015
Issue
10
Author
D. Held
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