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GPC/SEC Tipps&Tricks
Entwickelt von PSS für LCGC: Praktische Tipps und Ratschläge für GPC/SEC-Benutzer.
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Veröffentlicht
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…
Sprache
Veröffentlichungsnummer
20376
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2011
Veröffentlicht
23.08.2011
Ausgabe
8
Autor
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…
Sprache
Veröffentlichungsnummer
20384
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2012
Veröffentlicht
24.05.2012
Autor
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…
Sprache
Veröffentlichungsnummer
20508
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2019
Veröffentlicht
10.12.2019
Ausgabe
12
Autor
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.
Sprache
Veröffentlichungsnummer
20524
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2021
Veröffentlicht
19.08.2021
Ausgabe
8
Autor
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. …
Sprache
Veröffentlichungsnummer
20526
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2022
Veröffentlicht
17.02.2022
Ausgabe
1
Autor
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?
Sprache
Veröffentlichungsnummer
20257
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2007
Veröffentlicht
25.01.2007
Ausgabe
10
Autor
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…
Sprache
Veröffentlichungsnummer
20513
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2020
Veröffentlicht
11.11.2020
Ausgabe
11
Autor
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…
Sprache
Veröffentlichungsnummer
20410
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2013
Veröffentlicht
15.08.2013
Ausgabe
8
Autor
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…
Sprache
Veröffentlichungsnummer
20409
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2013
Veröffentlicht
05.07.2013
Ausgabe
6
Autor
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…
Sprache
Veröffentlichungsnummer
20446
Publication Type
Tip&Trick
Quelle
The Column
Jahr
2015
Veröffentlicht
12.06.2015
Ausgabe
6
Autor
D. Held, W. Radke