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T&T GPC/SEC: _Sample Preparation
Polymers are sensitive molecules. Depending on the polymer architecture or copolymer composition, it is possible to have bonds present along the polymer chain, which can easily be broken. In…
Language
Publication Number
20376
Publication Type
Tip&Trick
Source
The Column
Year
2011
Publication date
23.08.2011
Issue
8
Author
G. Reinhold
T&T GPC/SEC: _What is the best detector sequence?_
The information and results that are available from detector combinations have been the subject of various Tips&Tricks over the years.This Tip&Trick discusses the general impact of detector…
Language
Publication Number
20384
Publication Type
Tip&Trick
Source
The Column
Year
2012
Publication date
24.05.2012
Author
D. Held, P. Kilz
T&T GPC/SEC: "Green" GPC/SEC and_Solvent Alternatives
The "greenest solution" is certainly using no solvent but gel permeation chromatography/size-exclusion chromatography (GPC/SEC) as a liquid chromatography (LC) technique requires the use of a mobile…
Language
Publication Number
20508
Publication Type
Tip&Trick
Source
The Column
Year
2019
Publication date
10.12.2019
Issue
12
Author
D. Held, J. Preis
T&T GPC/SEC: A Few Things Chromatograms Can (and Can't) Tell
This instalment of Tips & Tricks will deal with some common misinterpretations of chromatograms and will discuss information that might be obtained without performing a full column calibration.
Language
Publication Number
20524
Publication Type
Tip&Trick
Source
The Column
Year
2021
Publication date
19.08.2021
Issue
8
Author
W. Radke
T&T GPC/SEC: A Few Things Molar Mass _Distributions Can (and Can't) Tell
This instalment of Tips & Tricks will explain the benefits of a molar mass distribution over molar mass averages and the differences between the different representations of molar mass distributions. …
Language
Publication Number
20526
Publication Type
Tip&Trick
Source
The Column
Year
2022
Publication date
17.02.2022
Issue
1
Author
W. Radke
T&T GPC/SEC: A look at the importance of molar mass averages.
Why does a macromolecule have several molar masses and what do these indicate?
Language
Publication Number
20257
Publication Type
Tip&Trick
Source
The Column
Year
2007
Publication date
25.01.2007
Issue
10
Author
D. Held, G. Reinhold
T&T GPC/SEC: Alternatives to Narrow Standard Calibration in GPC/SEC
Molar mass determination by GPC/SEC requires column calibration. This is usually performed using narrowly distributed polymer standards of known molar mass. However, by this procedure true molar…
Language
Publication Number
20513
Publication Type
Tip&Trick
Source
The Column
Year
2020
Publication date
11.11.2020
Issue
11
Author
D. Held, W. Radke
T&T GPC/SEC: An Alternative to Calibration with Narrow Standards
When narrow molar mass standards are unavailable, or molar masses of calibration standards are too low to calibrate the complete molar mass range of samples to be characterized, integral calibration…
Language
Publication Number
20410
Publication Type
Tip&Trick
Source
The Column
Year
2013
Publication date
15.08.2013
Issue
8
Author
D. Held, P. Kilz
T&T GPC/SEC: Analysis and Calibration for Low Molar Mass Macromolecules
Macromolecules can range from several hundred daltons to several million daltons in molar mass. There are many applications where only products with a low molecular weight are used. Gel permeation…
Language
Publication Number
20409
Publication Type
Tip&Trick
Source
The Column
Year
2013
Publication date
05.07.2013
Issue
6
Author
D. Held, S. Fugmann, P. Kilz
T&T GPC/SEC: Answering Common Questions About GPC/SEC Columns
The hardest part of any gel permeation chromatography/size-exclusion chromatography (GPC/SEC) separation is selecting the right columns and developing a robust method. Here, we present a selection of…
Language
Publication Number
20446
Publication Type
Tip&Trick
Source
The Column
Year
2015
Publication date
12.06.2015
Issue
6
Author
D. Held, W. Radke