Special Issues-12-01-2010

Naringenin, a chiral flavonoid found in several fruit juices, is well known for its beneficial health-related properties, including antioxidant, antimicrobial, anti-inflammatory, and immunomodulating activities. The HPLC and supercritical fluid chromatography (SFC) enantioselective separation of (R,S)-Naringenin has been performed on both analytical and semi-preparative scale using an amylose derived RegisPack CSP.

Supelco, a Sigma-Aldrich Corporation subsidiary, is an ISO 9001-registered company that manufactures and distributes an extensive selection of HPLC, chiral, and GC columns as well as SPE products, SPME materials, chemical standards, and customized products and services (such as resin, media processing, and small unit packaging).

IDEX Health & Science LLC designs, develops, and manufactures liquid subassemblies and precision components for a wide range of applications requiring precise control and measurement.

Formed in 1997, Markes International is the world's leading supplier of thermal desorption (TD) instrumentation and related sampling accessories for monitoring toxic and odorous chemicals in air, gas, and materials.

Designed for purification and engineered for science, Gilson, Inc. provides high quality, dependable solutions for today's demanding liquid chromatography, solid phase extraction, liquid handling, and gel permeation chromatography clean-up requirements.

Daiso is one of the world's largest manufacturers of spherical chromatographic-grade silica gel.

Beckman Coulter develops, manufactures, and markets products that simplify, automate, and innovate complex biomedical testing.

For over 70 years, industries around the world have trusted LECO Corporation to deliver high-performance analytical instrumentation.

PerkinElmer is a global scientific leader providing an extensive range of technology solutions and services to address the most critical issues facing humanity.

Our continuing leadership in chromatography helps us create powerful solutions to increase productivity for the industries that shape the world.

Isolation and purification of compounds and their impurities/degradants is an important part of the drug discovery and development process.

With worldwide headquarters in Herisau, Switzerland and regional offices spanning every continent, Metrohm is a global leader and innovator in ion analysis equipment for QA/QC, R&D, and general testing labs in virtually any industry.

Hamilton Company is a global enterprise with manufacturing facilities in Reno, Nevada, and Bonaduz, Switzerland.

ZirChrom Separations, Inc. is a company formed in 1995 located in Anoka, Minnesota.

SPEX CertiPrep manufactures high quality organic certified reference materials for GC, GC–MS, and HPLC. We offer a wide variety of organic products (EPA methods, volatiles, semi-volatiles, PCB, pesticides, and herbicides) with over 3,000 stock items that are ready to ship within 24–48 hours. Our Custom Standards Program allows laboratories to design their own standards with quick turnaround time at no additional cost.

EMD Chemicals Inc. is a North American affiliate of Merck KGaA, Darmstadt, Germany.

Wyatt Technology Corp. (WTC) is the world's largest company dedicated to light-scattering detectors for LC. Dr. Philip J. Wyatt, the president and founder of the company, was the developer of the first commercial multiangle light-scattering instruments more than 40 years ago.

Polysaccharides are often separated using SEC columns. However, SEC columns do have limitations, specifically: poor column efficiency or peak shape.

GC–MS analysis of urine for drugs of abuse is commonplace, but can be complicated by high matrix effects and frequent co-elution.

In the recently published 2nd edition of Modern Size Exclusion Liquid Chromatography: Practice of Gel Permeation and Gel Filtration Chromatography (1) it is stated that the debate about which column to place first when running a series of SEC columns is still open.

Quadrex Corporation was founded in 1976 in order to provide commercially available, high quality capillary columns to the gas chromatography market.

Quant Technologies is a leader in the development and manufacture of Aerosol-based HPLC detectors.

Teledyne Tekmar is the leader in analytical instrumentation for the laboratory. Our world-renowned volatile organic compound (VOC) products include systems for gas chromatography sample introduction, high-throughput purge-and-trap sample concentration, static and dynamic headspace analysis, and sample automation.

Polymer Char, the world's leading polyolefin characterization company, is devoted to the development of state-of-the-art instrumentation for structural characterization of polyolefins.

There are currently several hormones and hormonelike agents with marked ability to improve the rate of growth and efficiency of feed intake for animals.

Safety: Parker Balston gas generators completely eliminate the safety hazards involved with handling high-pressure gas cylinders. Enjoy hassle-free automation with no tanks to charge and no downtime.

OI Analytical designs, manufactures, markets, and supports analytical instruments used for sample preparation, detection, and measurement of chemical compounds and elements.

GERSTEL develops and produces automated sample preparation and sample introduction accessories for GC, GC–MS, LC, and LC–MS. GERSTEL technology enhances productivity and significantly improves detection limits for GC–MS and LC–MS analysis.

Click the title above to open the LCGC North America December 2010 Corporate Capabilities, Vol 28 No s12, in an interactive PDF format.