Horizon Technology Donates Original SPE-DEX 4700 to Chemical Heritage Foundation
April 9th 2013In celebration of its 20th anniversary, Horizon Technology (Salem, New Hampshire) donated an original SPE-DEX 4700 solid phase disk extraction unit to the Chemical Heritage Foundation (Philadelphia, Pennsylvania).
Metrohm and FOSS Form Strategic Alliance
April 5th 2013Metrohm (Herisau, Switzerland) has announced the formation of a strategic alliance with FOSS (Hilleroed, Denmark). Metrohm will become the sole global distributor of FOSS NIR instruments for the chemical, petrochemical, pharmaceutical and environmental sectors.
Past, Current, and Future Directions in Supercritical Fluid Chromatography
April 1st 2013Supercritical fluid chromatography has become a viable option for the separation scientist in diverse areas, and the field now seems more adequately described as an extension of HPLC, or perhaps as "carbon dioxide–based HPLC."
Assay for Parts-Per-Million Levels of Azide in Drug Substances
April 1st 2013The removal of azide as a potential impurity from a drug substance may be critical to its safety profile. The quantitation of thi impurity is an important control parameter. This article describes a simple and practical assay for azide using chemical derivatization and HPLC.