Northeastern University Researcher Receives International Honors
May 30th 2008Dr. Barry L. Karger, the James L. Waters Chair in Analytical Chemistry, Director of the Barnett Institute of Chemical and Biological Analysis at Northeastern University, and internationally recognized expert on separation science, has been elected into the Hungarian Academy of Sciences as an honorary member. Dr. Karger has also been awarded the Csaba Horvath Medal of Innsbuck, Austria, for his contributions to the field of separation science and bioanalytical chemistry.
Advion acquires manufacturing partner
May 12th 2008Advion Biosciences Inc. (Ithaca, New York), a developer of microfluidic sampling technology for mass spectrometry (MS) has bought almost all assets of its production supplier, Washburn Manufacturing Technologies Inc. (Trumansburg, New York) for an undisclosed amount.
German researcher presented with Manfred Donike Award
May 12th 2008Agilent Technologies has announced the presentation of the 2008 Manfred Donike Award for scientific excellence in sports doping testing to the German research scientist Ulrich Flenker, of the Institute of biochemistry, German Sport University, Cologne, Germany.
Techniques for Reducing Purge-and-Trap Cycle Times in VOC Analysis
May 10th 2008The purge-and-trap (P&T) technique for analysis of volatile organic compounds (VOCs) was pioneered in the 1970s at the United States Environmental Protection Agency (USEPA) research laboratory in Cincinnati. Many of the operational parameters developed during this time period are still included in USEPA methods. While these parameters still produce good analytical results, they do not take advantage of advances in instrumentation that enable analysis of emerging contaminants such as fuel oxygenates, and increased sample throughput.
SeQuant acquistion expands Merck KGaA's chromatography portfolio
May 10th 2008Merck KGaA (Darmstadt, Germany), a privately-held pharmaceutical and specialist chemicals company, has acquired the assets of chromatographic column developer SeQuant AB (Umea, Sweden). "[The aquisition] offers Merck superb opportunities for the future expansion of the chromatography business," said Klaus Bischoff, head of the Performance and Life Science Chemicals division at Merck.
Ask the Editor: UHPLC Particle Size Limitations
May 10th 2008Q: The current advent of sub-2-?m particles has made ultrahigh-pressure liquid chromatography (UHPLC) available for routine laboratory use. What are the size limitations for particles? How small can they get before the advantages are lost? Would smaller particles require even greater pressures?"
Peaks of Interest-Scientists Develop Method for Identifying Gunshot Residue
May 1st 2008Scientists Jorn Chi Chung Yu, Garrett Lee Burleson, and colleagues in the Department of Forensic Science at Sam Houston State University in Texas have developed a new method for identifying gunshot residue without the presence of lead.
Ask the Editor: Preparative GC Applications
April 10th 2008What are some examples of preparative GC applications? According to R.P.W. Scott in Gas Chromatography (1), ?[t]here are a number of unique problems associated with preparative gas chromatography. Firstly, it is difficult to recycle the mobile phase and thus large volume of gas are necessary. Secondly, the sample must be fully vaporized onto the column to ensure radial distribution of the sample across the column. Thirdly, the materials of interest are eluted largely in a very dilute form from the column and therefore must be extracted or condensed from the gas stream which is also difficult to achieve efficiently.?
Introduction: HPLC Column Technology – State of the Art
April 1st 2008It has often been stated (or maybe overstated) that the column is the heart of the chromatograph. Without the proper choice of column and appropriate operating conditions, method development and optimization of the high performance liquid chromatographic (HPLC) separation can be frustrating and unrewarding experiences. Since the beginning of modern liquid chromatography, column technology has been a driving force in moving separations forward. Today, the driving forces for new column configurations and phases are the increased need for high throughput applications, for high sensitivity assays and to characterize complex samples such as peptide digests and natural products.