ASSET EZ4-NCO Analysis of Isocyanates
Introduction Isocyanates are used as a raw material to produce a number of products such as automotive paints, rigid and spray foam insulation, and furniture. Personal exposure can occur while the pr...
Jamie Brown, Emily Barrey, Olga Shimelis and Kristen Schultz
Reporter US Volume 30.3
Keywords: Air sampling, Automotive, Degradations, Derivatizations, Detection methods, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Respiratory, Sample preparations
Analysis of Carbonyls Using a Dual-Layer LpDNPH Sampling Tube and HPLC
Introduction The dual-layer LpDNPH sorbent tube is an air sampling device designed for sampling carbonyls (e.g. formaldehyde) in ambient, indoor, and industrial atmospheres. Carbonyls are trapped on ...
Kristen Schultz, and Jamie Desorcie
Reporter US Volume 30.1
Keywords: Air sampling, Chromatography, High performance liquid chromatography, Individual protein Immunoprecipitation, Sample preparations
Ascentis Express UHPLC Columns with 2.0 μm Fused-Core Particles
Column Performance The new Supelco Ascentis® Express column line has been designed specifically for UHPLC instruments with 2.0 µm Fused-Core® silica, as diagrammed in Figure 1. Ascentis Express 2.0 µ...
Richard A. Henry, Gaurang Parmar
Reporter US, Volume 32.2
Keywords: High performance liquid chromatography, Mass spectrometry, Pharmaceutical, Separation
Derivatization and Separation of Aliphatic Amines
Hugh Cramer, Associate Scientist Shyam Verma, Market Segment Manager Michael Kiselewsky, Product Manager
AnalytiX, Volume 2, 2011
Keywords: Absorption, Derivatizations, High performance liquid chromatography, Separation
Fast and Robust HPLC Separation of Bile Acids and Conjugates with Ascentis Express C18
Bile acids are increasingly recognized as playing an important signaling role in the control of immune response and energy metabolism. Recently, there has been interest in measuring bile acid concent...
Clare Glicksman, Michael Wright, Dave Bell, and Anders Fridström
Reporter US, Volume 33.1
Keywords: Bacterial conjugations, Clinical, High performance liquid chromatography, Hormones, Mass spectrometry, Metabolism, Separation, Thin layer chromatography
Improving the Current USP Method for the Analysis of Lansoprazole Drug Substance Using HPLC Columns Based on Fused-Core™ Particle Technology
Compendial methods from the USP (United States Pharmacopeia) are widely used in pharmaceutical drug product and raw materials testing. However, not all methods in the USP use modern technologies. In ...
Kai Li, Jiajie He, Xiaoya Ding
Reporter US Volume 26.1
Keywords: Compliance, High performance liquid chromatography, Methods, Pharmaceutical, Reductions
LC-MS Determination of Triacylglycerols in Expired Dairy Products and Seafood
Marco Beccaria1 and Luigi Mondello1,2 1Chromaleont s.r.l., c/o “Scienze del Farmaco e Prodotti per la Salute” Department, University of Messina, viale Annunziata, 98168 Messina, Italy 2“Scienze del F...
Reporter US Volume 33.4 (Food & Beverage Supplement)
Keywords: Flame ionization detector, Gas chromatography, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Nutrition, Oxidations, Phase transitions, Separation
LC×LC/MS Method for TAGs in Marine Organisms using Different Extraction Procedures
The sea and its living organisms constitute samples of high interest in environmental analysis. Knowledge of the chemistry of the sea and marine species can provide reliable information about polluti...
Marco Beccaria1 and Luigi Mondello1,2
1Chromaleont s.r.l., c/o “Scienze del Farmaco e Prodotti per la Salute” Department, University of Messina, viale Annunziata, 98168 Messina, Italy
2“Scienze del Farmaco e Prodotti per la Salute” Department, University of Messina, viale Annunziata, 98168 Messina, Italy
Keywords: Cardiovascular, Chromatography, Environmental, Environmental Analysis, Gas chromatography, High performance liquid chromatography, Ion-exchange chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Metabolic Pathways, Metabolism, Phase transitions, Sample preparations, Separation
Rapid Screening of Pharmaceutical Compounds | Fast HPLC
HPLC is critical to the discovery, development and eventual commercialization of pharmaceutical products. HPLC is the benchmark analytical method in the pharmaceutical industry due to its ability to ...
Reporter EU Volume 30
Keywords: Anti-depressants, Chromatography, Diffusion, High performance liquid chromatography, Mass spectrometry, PAGE, Pharmaceutical, Reductions, Separation
Separation of Ginsenosides in Panax Quinquefolius (American Ginseng)
Belonging to the plant genus panax, ginseng is one of the most well-known herbal medicines. It has been used in traditional Chinese medicine for centuries, but has also become very popular in the Wes...
Hugh Cramer, Matthias Nold
Analytix Volume 3, 2015
Keywords: Diabetes, Nuclear magnetic resonance spectroscopy, Pharmaceutical, Separation, Sonication
Serum Lipidomics Profiling | Ascentis Express Fused-Core C18 Column
The following was generated with the assistance of an outside source using Sigma-Aldrich products. Technical content was generated and provided by:
Reporter US Volume 29.5
Keywords: Analytical Chemistry, Chromatography, Diffusion, Gas chromatography, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Metabolites, Phase transitions, Separation
Boosting HPLC Productivity: Nick the Hero [VIDEO]
Boosting HPLC Productivity Ascentis Express columns provide high-speed and high-efficiency separations that boost lab productivity. Learn about the features and benefits; become the "Nick the Hero" i...
Keywords: High performance liquid chromatography
Selection Guide for Ascentis® Express HPLC Columns
Ascentis Express C18 is the first choice for starting a new method. However, when a C18 doesn't give the desired separation or your sample contains compounds that are known to be difficult to retain ...
Keywords: High performance liquid chromatography, Separation, Supercritical fluid chromatography
Supelco HPLC Calculator for Isocratic or Gradient Method Transfer
Calculates conditions for transfer of an isocratic or gradient method from one HPLC column to another. Allows method scaling from microbore through preparative column range. Calculates time and solve...
Keywords: High performance liquid chromatography