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LCGC BLOG

Getting the Best Repeatability from Your Quantitative Gas Chromatography

I'm often asked "what reproducibility should I expect to get from my [insert instrument manufacturer and model]?" So, most folks are referring to the repeatability aspects of precision, as in: "what relative standard deviation (usually expressed at %RSD) for peak area or quantitative result should I be able to achieve from repeat injections from a single vial of sample?" Read more

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LC Troubleshooting

Increasing Resolution by Increasing Retention

How to find the "sweet spot" in terms of retention for a liquid chromatographic separation as well as how much retention change can be expected for a selected change in organic mobile-phase percentage or column temperature. Read more

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LCGC TV

Peter Schoenmakers on Combining Space-Based and Time-Based Separations and 3D LC: Is It Practical?

Space-based and time-based separations are often a preferred approach. Peter Schoenmakers from the University of Amsterdam discusses how they can be combined and the benefits of this approach. He also discusses the complexities of 3D LC. Read more

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Features

Measuring Bumblebee Resistance to Parasites

Evan Palmer-Young of the University of Massachusetts at Amherst, Massachusetts, USA, and Philip Stevenson of the Royal Botanic Gardens, Kew, London, UK, spoke to The Column about their work on bumblebee resistance to the trypanosome parasite Crithidia bombi and the role of chromatography in this research. Read more

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News

Studying the Effects of OCPs on Human Health Using SPE and GC–ECD

Researchers from the Universidad Autónoma de Yucatán in Mexico, have used solid-phase extraction (SPE) and gas chromatography–electron capture detection (GC–ECD) to study the effects of organopesticides in the Yucatán region of Mexico. Read more

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Upcoming Webcasts

Getting the Most out of Your LC Systems

Tuesday, July 11, 2017
11 am EDT | 8 am BST | 4 pm BST | 5 pm CEST
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Orbitrap GC-MS: An Opportunity to Help Address the Challenges of Chlorinated Paraffins Analysis

Wednesday, July 12, 2017
11 am EDT | 8 am PDT | 4 pm BST | 5 pm CEST
Register>>

Complete Structural Insight into Therapeutic Proteins: Using Mass Spectrometry Under Native & Denaturing Conditions
Part II: From Optimized Sample Preparation to Data Analysis: LC-MS Analysis of Therapeutic Proteins on the Intact and Subunit Level

Thursday, July 13, 2017
11 am EDT | 8 am PDT | 4 am BST | 5 am CEST
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Low Energy, High Confidence: Eliminating Unknowns with GC/Q-TOF

Thursday, July 13, 2017
11 am EDT | 8 am PDT | 4 pm BST | 5 pm CEST
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Analysis of Residual Solvents in Pharmaceutical Excipients and Products by GC-VUV – Reduction of GC runtimes by greater than 5x – Ability to combine different solvent classes into a single run

Tuesday, July 18, 2017
11 am EDT | 8 am PDT | 4 pm BST | 5 pm CEST
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Complete Structural Insight into Therapeutic Proteins: Using Mass Spectrometry Under Native & Denaturing Conditions
Part I: Simplified Mass Spectral Characterization of Complex Biotherapeutic Drugs Under Native and Denaturing Conditions

Authenticating Botanicals and Herbal Supplements Using UPLC-QToF-MS and a Metabolomics Approach

Editors' Series: Sample Preparation: The Forgotten Dimension in HPLC

Characterization of Substances in Food Packaging Migration Studies using LC- and GC- coupled to High Resolution Accurate Mass (HRAM) Mass Spectrometry

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LCGC BLOG

Getting the Best Repeatability from Your Quantitative Gas Chromatography

LC Troubleshooting

Increasing Resolution by Increasing Retention

LCGC TV

Peter Schoenmakers on Combining Space-Based and Time-Based Separations and 3D LC: Is It Practical?

Features

Measuring Bumblebee Resistance to Parasites

News

Studying the Effects of OCPs on Human Health Using SPE and GC–ECD

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Application Note

Application Note Title

Upcoming Webcasts

Getting the Most out of Your LC Systems

Orbitrap GC-MS: An Opportunity to Help Address the Challenges of Chlorinated Paraffins Analysis

Complete Structural Insight into Therapeutic Proteins: Using Mass Spectrometry Under Native & Denaturing Conditions
Part II: From Optimized Sample Preparation to Data Analysis: LC-MS Analysis of Therapeutic Proteins on the Intact and Subunit Level

Low Energy, High Confidence: Eliminating Unknowns with GC/Q-TOF

Analysis of Residual Solvents in Pharmaceutical Excipients and Products by GC-VUV – Reduction of GC runtimes by greater than 5x – Ability to combine different solvent classes into a single run

Orthogonal Chromatographic Techniques for the Quantitative Analysis of Potential Mutagenic Impurities

Taking Advantage of LC Column Characteristics to Improve Analyses

Making Good Methods Even Better

ON DEMAND WEBCASTS

The Application of Spectral Accuracy to Mass Spectrometry for Enhanced Formula ID and Mixture Analysis

Using Magnetic Sector GC–HRMS in a Commercial Dioxin Lab

Who Cares about SVOCs? The Next Generation of Product Emission Testing for Indoor Exposure Modeling

How to Understand Measurement Uncertainty in TOF Mass Spectrometry and Ion Mobility-Mass Spectrometry

Complete Structural Insight into Therapeutic Proteins: Using Mass Spectrometry Under Native & Denaturing Conditions
Part I: Simplified Mass Spectral Characterization of Complex Biotherapeutic Drugs Under Native and Denaturing Conditions

Authenticating Botanicals and Herbal Supplements Using UPLC-QToF-MS and a Metabolomics Approach

Editors' Series: Sample Preparation: The Forgotten Dimension in HPLC

Characterization of Substances in Food Packaging Migration Studies using LC- and GC- coupled to High Resolution Accurate Mass (HRAM) Mass Spectrometry