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LCGC TV Video: Mary Ellen McNally on Maintaining Precision During Method Transfer: Transferring methods between laboratories can be extremely difficult. In this new short video from LCGC TV, Mary Ellen McNally from DuPont Crop Protection gives her advice on best practices for maintaining precision during method transfer.


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Column Watch: Ron Majors, established authority on new column technologies, keeps readers up-to-date with new sample preparation trends in all branches of chromatography and reviews developments. LATEST: Avoiding Reversed-Phase Chromatography Problems Through Informed Method Development Practices: Choosing the Stationary-Phase Chemistry

Perspectives in Modern HPLC: Michael W. Dong is a senior scientist in Small Molecule Drug Discovery at Genentech in South San Francisco, California. He is responsible for new technologies, automation, and supporting late-stage research projects in small molecule analytical chemistry and QC of small molecule pharmaceutical sciences. LATEST: Seven Common Faux Pas in Modern HPLC

MS — The Practical Art: Kate Yu brings her expertise in the field of mass spectrometry and hyphenated techniques to the pages of LCGC. In this column she examines the mass spectrometric side of coupled liquid and gas-phase systems. Troubleshooting-style articles provide readers with invaluable advice for getting the most from their mass spectrometers. LATEST: Radical Mass Spectrometry as a New Frontier for Bioanalysis

LC Troubleshooting: LC Troubleshooting sets about making HPLC methods easier to master. By covering the basics of liquid chromatography separations and instrumentation, John Dolan is able to highlight common problems and provide remedies for them. LATEST: Estimating Resolution for Marginally Separated Peaks

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Avoiding Reversed-Phase Chromatography Problems Through Informed Method Development Practices: Choosing the Stationary-Phase Chemistry
Understanding the chemistry of embedded polar group and perfluorophenyl phases leads to better decisions during method developement
Sample Preparation in Metabolomics
Advances in MS instrumentation have opened up the field of metabolomics. In this video from LCGC TV, Tuulia Hyötylainen discusses the range of sample prep techniques performed in metabolomics.
Recent Developments in Ion Mobility Mass Spectrometry for Bioanalysis
This article reviews recent developments that aim to address the conflicting demands for higher throughput, sensitivity, and selectivity in bioanalysis applications.
The Role of Elution Gradient Shape in the Separation of Protein Therapeutics
A discussion of the role of the gradient in separation by reversed-phase and ion-exchange HPLC, with data from two products to illustrate the key points
How Much Retention Time Variation is Normal?
Small changes in retention time of a liquid chromatography (LC) method are normal. But at what point is a problem suggested? Retention time shifts can be frustrating when you can't figure out if a shift is something you caused or if there is another reason for it.


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