LC Resources

Walnut Creek, CA, United States

LC Resources

Walnut Creek, CA, United States
SEARCH FILTERS
Time filter
Source Type

Dolan J.W.,LC Resources
LC-GC North America | Year: 2016

A reliable autosampler is one key requirement for unattended operation of a liquid chromatograph. © 2017 UBM. All rights reserved.


Dolan J.W.,LC Resources
LC-GC North America | Year: 2016

Different techniques of liquid chromatography (LC) mobile-phase mixing can give different results and have different problems. © 2017 UBM. All rights reserved.


Dolan J.W.,LC Resources
LC-GC North America | Year: 2016

Understanding how liquid chromatography pumps operate can help streamline solving pump problems. © 2017 UBM. All rights reserved.


Dolan J.W.,LC Resources
LC-GC North America | Year: 2016

Detectors based on ultraviolet absorbance are the most common detectors in use for liquid chromatography. © 2017 UBM. All rights reserved.


Dolan J.W.,LC Resources
LC-GC North America | Year: 2016

Interfering peaks or high baseline background can compromise the results of gradient liquid chromatography (LC) separations. © 2017 UBM. All rights reserved.


Dolan J.,LC Resources
LC-GC North America | Year: 2017

We’ll learn how to find the “sweet spot” in terms of retention for a liquid chromatography separation as well as how much retention change can be expected for a selected change in mobile-phase percent organic or column temperature. © 2017 UBM. All rights reserved.


Dolan J.W.,LC Resources
LC-GC North America | Year: 2017

When considering column efficiency, more is not always better. We look at some ways to quickly estimate the effects of changes in column length and particle diameter rather than trying the experiments in the laboratory. © 2017 UBM. All rights reserved.


Dolan J.W.,LC Resources
LC-GC Europe | Year: 2017

The mobile-phase pH can be a powerful tool to control retention and selectivity, but it can also get you in trouble if it is not controlled properly. © 2017 UBM. All rights reserved.


Snyder L.,LC Resources
Journal of Planar Chromatography - Modern TLC | Year: 2012

"Localization" refers to the non-covalent attachment of molecules of solute or solvent to strong sites that form part of the adsorbent surface. This phenomenon and its significance in adsorption chromatography are reviewed, including its various effects on sample retention and resolution. © Akadémiai Kiadó.


Snyder L.R.,LC Resources | Dolan J.W.,LC Resources
Journal of Chromatography A | Year: 2013

Several different conditions can be varied to improve selectivity for reversed-phase chromatography (RPC). A reexamination of literature data suggests that changes in selectivity due to a change of column or mobile phase pH are largely replicated by changes in temperature or mobile phase composition (concentrations of acetonitrile and/or methanol). This suggests a reconsideration of the role of mobile phase pH and the column during method development. © 2013 Elsevier B.V.

Loading LC Resources collaborators
Loading LC Resources collaborators