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  • Sample Processing at Pittcon® 2014

    Tuesday, May 06, 2014
    Application Note
    Robert L. Stevenson, Ph.D.
    The tenfold increase in speed for the analytics (GC, HPLC, and SFC [supercritical fluid chromatography], all with MS) over the last decade has shifted the choke point in many workflows from analytics ... read more

  • How Solid-Phase Extraction Affects Challenges in Bioanalysis

    Wednesday, February 05, 2014
    Application Note
    Mike Oliver Tim Liddicoat Ken Meadows
    Modern bioanalytical laboratories are tasked with providing high-quality analytical results from complex biological samples in a high-throughput environment. These needs have to be balanced with the ... read more

  • The Story of MALS

    Saturday, October 05, 2013
    Technical Article
    Philip J. Wyatt
    The concept of measuring light scattered from a solution at each of a plurality of angles simultaneously began in late 1976 in a very unlikely application. At that time, scientists from Science ... read more

  • A Sensitive and Selective GC/MS Method for Analyzing Persistent Organic Pollutants Using a Novel ...

    Friday, October 04, 2013
    Application Note
    Jody Dunstan
    Charge transfer chemical ionization (CI) was among the ionization types studied decades ago by researchers investigating fundamental Characteristics of chemical ionization. However, the technique was ... read more

  • Product Intelligence: Solid Phase Extraction Systems

    Monday, February 25, 2013
    Technical Article
    Solid phase extraction, or SPE, is used to isolate pollutants in water and pesticides in food, isolate drugs in blood and tissue samples, and separate proteins from a mixture, among other applications... read more

  • Focus on Separation Science at Pittcon® 2012: Advances in Gas Chromatography

    Monday, May 07, 2012
    Technical Article
    Robert L. Stevenson, Ph.D.
    For gas chromatography (GC), the big news at Pittcon® 2012 was the absence of Agilent and PerkinElmer. This was a consequence of an overall downsizing caused by the “six-year effect” where the cycles ... read more

  • Optimizing HPLC Sample Preparation

    Monday, February 06, 2012
    Technical Article
    Caitlin Smith
    Sample preparation is an important component for analysis in high-performance liquid chromatography (HPLC)/ultra high-performance liquid chromatography (UHPLC). This article outlines commonly used ... read more

  • Food Safety Testing and New Technologies

    Friday, February 03, 2012
    Application Note
    Mukta M. Shukla
    Just as Alexander Fleming’s groundbreaking discoveries on penicillin ushered in a new era of antibacterial agents to extend human lifespans, it was the work of Louis Pasteur that helped introduce the ... read more

  • Focus on Columns and Consumables at Pittcon® 2011

    Tuesday, May 10, 2011
    Technical Article
    Robert L. Stevenson, Ph.D.
    Columns, chemicals, and consumables (CCCs) account for more than 30% of the chromatography market. read more

  • Effective UPLC Implementation

    Wednesday, April 06, 2011
    Technical Article
    Mark Dawson
    As the science of HPLC has evolved over the years, we have witnessed many changes to HPLC chemistry and instrumentation. read more

  • A New-Generation Microwave Digestion System

    Friday, January 28, 2011
    Application Note
    Carl Chan
    Since the laboratory microwave digestion system first became commercially available in the 1980s, sample preparation has become mainstream, and the preparation of samples for atomic spectroscopy has ... read more

  • Reliable and Effective Trace-Level Total Sulfur Determination Using New Injection and Combustion ...

    Thursday, February 26, 2009
    Application Note
    Rene van der Windt Arthur van Strien
    Total sulfur and nitrogen (TS/TN) levels are commonly used parameters in the petrochemical, natural gas, and oil refining industries, and the need for their determination is growing due to the ... read more

  • Take the Laboratory With You: Portable XRF

    Thursday, February 26, 2009
    Application Note
    Jeffrey Henseler
    Energy dispersive X-ray fluorescence (ED-XRF) instruments perform nondestructive analysis of a wide range of elements with accuracy and precision. They are relatively inexpensive and are an excellent ... read more

  • Why Managed Maintenance is the HMO of Laboratory Instrumentation Repair and Maintenance

    Friday, February 20, 2009
    Application Note
    Mark Circo
    Our industry has undergone some dramatic changes in the past few years. Managed maintenance developed as a way for universities and large laboratories to save money on the annual maintenance of their ... read more

  • Application of UPLC Amino Acid Analysis Solution to Foods and Feeds

    Sunday, February 01, 2009
    Application Note
    Thomas E. Wheat Hillary B. Hewitson Diane M. Diehl
    Amino acid analysis has been used in the food and feed industries to verify and characterize materials and processes. The total amino acid content, as well as the proportions of growth-limiting amino ... read more

  • Analysis of Oxygenates in Gasoline by Multidimensional Gas Chromatography

    Sunday, February 01, 2009
    Application Note
    Takaaki Hiraoka Mikiko Asakawa Toyohito Wada Masanao Furukawa Yasunori Terai
    The quantitative measurement of oxygenated compounds such as alcohols and ethers in gasoline by gas chromatography is difficult, because a single column for the complete separation of the target ... read more

  • A GC Tool to Ensure Precise GC Column Installation for Method Sensitivity and Reproducibility

    Sunday, February 01, 2009
    Application Note
    Kory Kelly
    Correct and precise gas chromatography column installation is critical to system performance. Columns that are installed at an improper or inconsistent depth will adversely affect analyte response and... read more

  • Using Light Scattering to Characterize SiO2 Chemical Mechanical Planarization Slurries

    Sunday, February 01, 2009
    Technical Article
    Hui Ning
    Chemical mechanical planarization (CMP) slurries are typically colloidal dispersions of silicon dioxide (SiO2) in an acid or base solution. They are integral to the semiconductor industry, emerging as... read more

  • Solutions for Global Health and Well-Being

    Sunday, February 01, 2009
    Technical Article
    Sandra Rasmussen
    From investigating mercury-laden tuna sushi in Manhattan to high-profile recalls of contaminated toys and international concern over the quality of water and air in the 2008 Olympic Village, meeting ... read more

  • Fish-Related Standard Reference Materials

    Sunday, February 01, 2009
    Technical Article
    Michele Schantz Stephen A. Wise Steven J. Christopher W. Clay Davis Rusty D. Day Jennifer M. Keller John R. Kucklick Stephen E. Long Elizabeth A. Mackey David Point Barbara J. Porter Dianne L. Poster Katherine E. Sharpless Gregory C. Turk
    Humans have been eating fish for thousands of years, enjoying its nutritional benefits. In extreme cases, health risks posed by contaminants can outweigh the health benefits imparted by fish ... read more
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