Extracolumn Effects

Article

LCGC Europe

LCGC EuropeLCGC Europe-03-01-2005
Volume 18
Issue 3
Pages: 130–136

John Dolan concentrates on the impact plumbing can have on column performance and offers his advice on tubing selection.

External Link - article-149733.pdf

Articles in this issue
The UV Detector for HPLC — An Ongoing Success Story
Flow, Pressure and Temperature Calibration: Part 2
Extracolumn Effects
Practical Tips on Preparing Plasma Samples for Drug Analysis Using SPME
Analysis of Omeprazole and Lansoprazole in Capsules by Capillary Zone Electrophoresis
Related Videos
Toby Astill | Image Credit: © Thermo Fisher Scientific
Related Content
Daniel Armstrong at the University of Texas at Arlington. Photo Credit: © Daniel Armstrong

An Inside Look at the Analytical Method Greenness Score in High Performance Liquid Chromatography Enantioseparations: An Earth Day Interview with Daniel Armstrong

April 22nd 2024
Article

As LCGC International celebrates Earth Day, we spotlight the current chromatographic research that is advancing environmental analysis and sustainability efforts. In this interview, we spoke to Daniel Armstrong, professor of chemistry and biochemistry at the University of Texas at Arlington, about his work using mathematical strategies to minimize analytical method greenness scores (AMGS) in HPLC enantioseparations.

Angela I. Calderón is a Gilliland Endowed Professor in the Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University. She received her B.S. in Pharmacy from the University of Panama, Panama City, Republic of Panama (1990), MSc. in Pharmacognosy from the University of Illinois at Chicago, Chicago, Illinois under the supervision of Dr. Djaja Djendoel Soejarto and Dr. Cindy K. Angerhofer (1997), and Ph.D. in Pharmacognosy from the University of Lausanne, Lausanne, Switzerland under the guidance of Prof. Kurt Hostettmann (2002). Then, she conducted her postdoctorate on biomedical applications of mass spectrometry at Prof. Richard B. van Breemen’s laboratory at the University of Illinois at Chicago (2006-2008). She joined the faculty at Auburn University College of Pharmacy as an Assistant Professor in August 2008. Dr. Calderón specializes in natural drug products research, specifically applications of mass spectrometry to natural products drug discovery, and quality and safety assessment of botanical dietary supplements. Over the last sixteen years, she has authored 52 publications, 1 US patent, and 5 book chapters. She also has received research funding from agencies that include National Center for Complementary and Integrative Health (NCCIH) and the Office of Dietary Supplements (ODS) of the National Institutes of Health (NIH), American Society of Pharmacognosy, United States Pharmacopeia, Auburn University Research Initiative in Cancer (AURIC), and botanical dietary supplements industry. Dr. Calderón is currently an expert member of the United States Pharmacopeia Botanical Pan-American Expert Panel. She also was a member of the United States Pharmacopeia Botanical Dietary Supplements and Herbal Medicines Expert Committee. Additionally, she was the Section Editor of Pharmacognosy of Combinatorial Chemistry & High Throughput Screening and Pharmaceutical Biology and is a current member of the Advisory Board of Planta Medica She has been grant proposal reviewer for National Institutes of Health (NIH), National Science Foundation (NSF), USA and German Federal Ministry of Education and Research (BMBF) and Project Management Jülich (PtJ) and Deutsche Forschungsgemeinschaft (German Research Foundation), Germany, and International Foundation for Science (IFS), Sweeden.

Angela Calderón Discusses Importance of Sustainable Analysis Techniques

April 22nd 2024
Article

In this interview, Angela Calderón of Auburn University discusses the importance of using more environmentally friendly analysis techniques.

Katelyn Michael | Image courtesy of Katelyn Michael

Chromatography and PFAS Degradation Challenges: An Interview with Katelyn Michael

April 22nd 2024
Article

On the occasion of Earth Day, University of Wisconsin-Madison graduate student and chemist Katelyn Michael speaks with LCGC about the methods she has been using to attempt to degrade known PFAS.

Wonder Powder | Image Credit: © Shimadzu

Chromatography and Art Collide at Shimadzu Exhibit in Milan

April 20th 2024
Article

A 10-day exhibit at Milan Design Week in Italy is drawing to a close, but Shimadzu hopes that visitors have recognized the link between science and technology, and art and design.

Best of the Week: Inside the McLean Group Laboratory, Enhancing Omics Techniques

Best of the Week: Inside the McLean Group Laboratory, Enhancing Omics Techniques

April 19th 2024
Article

Here are the top five articles that the editors of LCGC International published this week.

lung cancer | Image Credit: © utah51 - stock.adobe.com

LC–MS/MS Array Created to Help Prognoses for Lung Cancer

April 16th 2024
Article

Scientists from the Netherlands created a new LC–MS/MS assay to test new small molecular inhibitors (SMIs) and their effectiveness in prognosing lung cancer.