Factors influencing detector matching in multidetector SEC: Solvent and concentration effects

Michael D. Zammit; Thomas P. Davis; Kevin G. Suddaby

doi:10.1016/S0032-3861(97)10373-1

Factors influencing detector matching in multidetector SEC: Solvent and concentration effects

Michael D. Zammit, Thomas P. Davis, Kevin G. Suddaby

Research output: Contribution to journal › Article › Research › peer-review

21 Citations (Scopus)

Abstract

A study has been conducted on the origin of the molecular weight (MWT) dependence of the apparent interdetector-delay (IDD) in multidetector size exclusion chromatography (SEC). The IDD-MWT relationship proved to be independent of polymer concentration (for a given molecular weight). In contrast, the IDD-MWT relationship was found to be influenced by the polymer-solvent interaction, as shown by SEC experiments on polystyrene in a mixed tetrahydrofuran-water eluent. Confirmation of this discovery was provided by measured variations in the IDD-MWT relationship for polystyrene and poly(methyl methacrylate) in THF eluent. Possible reasons for the strong influence of the polymer-solvent interaction on the IDD are discussed in the paper.

Original language	English
Pages (from-to)	5789-5798
Number of pages	10
Journal	Polymer
Volume	39
Issue number	23
DOIs	https://doi.org/10.1016/S0032-3861(97)10373-1
Publication status	Published - 1 Jan 1998
Externally published	Yes

Keywords

Dead time
Interdetector-delay
Poly(styrene)

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10.1016/S0032-3861(97)10373-1

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title = "Factors influencing detector matching in multidetector SEC: Solvent and concentration effects",

abstract = "A study has been conducted on the origin of the molecular weight (MWT) dependence of the apparent interdetector-delay (IDD) in multidetector size exclusion chromatography (SEC). The IDD-MWT relationship proved to be independent of polymer concentration (for a given molecular weight). In contrast, the IDD-MWT relationship was found to be influenced by the polymer-solvent interaction, as shown by SEC experiments on polystyrene in a mixed tetrahydrofuran-water eluent. Confirmation of this discovery was provided by measured variations in the IDD-MWT relationship for polystyrene and poly(methyl methacrylate) in THF eluent. Possible reasons for the strong influence of the polymer-solvent interaction on the IDD are discussed in the paper.",

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T1 - Factors influencing detector matching in multidetector SEC

T2 - Solvent and concentration effects

AU - Zammit, Michael D.

AU - Davis, Thomas P.

AU - Suddaby, Kevin G.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - A study has been conducted on the origin of the molecular weight (MWT) dependence of the apparent interdetector-delay (IDD) in multidetector size exclusion chromatography (SEC). The IDD-MWT relationship proved to be independent of polymer concentration (for a given molecular weight). In contrast, the IDD-MWT relationship was found to be influenced by the polymer-solvent interaction, as shown by SEC experiments on polystyrene in a mixed tetrahydrofuran-water eluent. Confirmation of this discovery was provided by measured variations in the IDD-MWT relationship for polystyrene and poly(methyl methacrylate) in THF eluent. Possible reasons for the strong influence of the polymer-solvent interaction on the IDD are discussed in the paper.

AB - A study has been conducted on the origin of the molecular weight (MWT) dependence of the apparent interdetector-delay (IDD) in multidetector size exclusion chromatography (SEC). The IDD-MWT relationship proved to be independent of polymer concentration (for a given molecular weight). In contrast, the IDD-MWT relationship was found to be influenced by the polymer-solvent interaction, as shown by SEC experiments on polystyrene in a mixed tetrahydrofuran-water eluent. Confirmation of this discovery was provided by measured variations in the IDD-MWT relationship for polystyrene and poly(methyl methacrylate) in THF eluent. Possible reasons for the strong influence of the polymer-solvent interaction on the IDD are discussed in the paper.

KW - Dead time

KW - Interdetector-delay

KW - Poly(styrene)

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U2 - 10.1016/S0032-3861(97)10373-1

DO - 10.1016/S0032-3861(97)10373-1

M3 - Article

AN - SCOPUS:0032210096

VL - 39

SP - 5789

EP - 5798

JO - Polymer

JF - Polymer

SN - 0032-3861

IS - 23

ER -

Factors influencing detector matching in multidetector SEC: Solvent and concentration effects

Abstract

Keywords

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