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Analytical Theory
Biological, Medical, and Clinical Analysis
Biopharmaceutical Perspectives
Biopharmaceuticals and Protein Analysis
Cannabis Analysis
Capillary Electrophoresis
Chiral Chromatography
ChromAcademy
Corporate Profiles
Data Acquisition, Handling, and Archiving
Data Analysis, Statistics, and Chemometrics
Dietary Supplements Analysis
Environmental Analysis
Field-Flow Fractionation (FFF)
Food and Beverage Analysis
Forensics, Narcotics
From the Editor
GC–MS
Gas Chromatography (GC)
HILIC
HPLC
Ion Chromatography
LCGC Interviews
LCGC TV: Gas Chromatography
LCGC TV: Hyphenated Techniques
LCGC TV: Liquid Chromatography
LCGC TV: Sample Preparation
LC–MS
Liquid Chromatography (LC/HPLC)
Market Profiles
Mass Spectrometry
Medical/Biological
Multidimensional GC
Multidimensional LC
Peer-Reviewed Articles
Pharmaceutical Analysis
Preparative-Scale Chromatography
Process Analytical Technology (PAT)
Quality Control/Quality Assurance (QA/QC)
Quality by Design (QbD)
Regulatory Standards, GLP and GMP Compliance
Sample Preparation
Size-Exclusion Chromatography (SEC)
Solid-Phase Extraction (SPE)
Supercritical Fluid Chromatography (SFC)
Supercritical Fluid Extraction (SFC)
The Next Generation
Thin Layer Chromatography
Trends
UHPLC
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Ziqing Lin

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Ziqing Lin is a Senior Principal Scientist in the Chemical Process Development department at Bristol Myers Squibb. His primary focus is on analytical method invention for synthetic drug substances and antibody-drug conjugates. He holds a Ph.D. in Biomedical Engineering from Purdue University.

Articles

Scientist moved the vial of sample out from the tray autosampler of the Liquid Chromatography Mass Spectrometer LC/MS after the analysis was complete. | Image Credit: © S. Singha - stock.adobe.com

In-Loop Analyte Degradation in Two-Dimensional Liquid Chromatography: Example and Solutions

Ziqing Lin;Qinggang Wang;Dwight R. Stoll
September 13th 2024

In this installment of “LC Troubleshooting,” we describe an artifact that can arise because of compound degradation during the transfer of fractions of the first dimension (1D) column effluent to the 2D separation.

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