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  • Comparative QC Test Methods for Toothpaste Consistency

    Tuesday, September 27, 2016
    Application Note
    Robert McGregor
    Important quantitative data can be obtained in the study of viscosity by measuring the consistency of toothpaste, i.e., thickness, ease of handling and ability to retain position, and observing the ... read more

  • How Do You Evaluate “Flowability”? Buttermilk Ranch vs Blue Cheese

    Monday, November 24, 2014
    Application Note
    Robert G. McGregor Eric Chiang Stephanie Shepard
    A common request from food manufacturers is to come up with a faster and more definitive test for flowability of salad dressings. 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

  • 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

  • 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

  • The Double Life of Structured Fluids

    Sunday, August 01, 2010
    Application Note
    Neil Cunningham Bob McGregor
    The products we stir, pump, spread, pour, and spray are usually thought of as liquids. Surprisingly, however, it can be demonstrated that they live a quiet double life as liquids when observed,but ... read more

  • Food Texture Analysis

    Saturday, May 01, 2010
    Application Note
    Richard D. Brown
    Texture testing is a well-established technique for evaluating the mechanical and physical properties of raw ingredients, food structure, and designs, and for pre- and post-quality control checks. ... read more

  • Advantages of In-House Generation of Nitrogen for HPLC With Evaporative Light Scattering Detection

    Friday, January 01, 2010
    Technical Article
    Peter Froehlich Corky Belobraydich
    Evaporative light scattering detection (ELSD) is a universal detection technique for HPLC that provides a number of distinct advantages over other commonly employed detection methods such as UV-VIS ... read more

  • Confidence Up Close

    Friday, January 01, 2010
    Application Note
    Aubrey Lambert
    The combined pressures of continuing miniaturization, higher packing densities, and rigorous quality assurance means that the physical size of particles capable of adversely affecting industrial ... read more

  • Integrating Informatics and High-Content Screening to Find a Cure for Spinal Cord Injury: Selecting ...

    Friday, January 01, 2010
    Application Note
    Vance Lemmon William Buchser Don Crossett
    The Miami Project to Cure Paralysis, part of the University of Miami Miller School of Medicine, includes a laboratory devoted to high-content screening (HCS) of neurons. The laboratory is run by Vance... read more

  • Direct Determination of Trace Elements in Solid Samples by DC Arc With Emphasis on the Analysis of ...

    Friday, January 01, 2010
    Application Note
    Maura Mahar Garry Kunselman Peter Brown Paul Dalager Peter Perzl
    Fast, direct, quantitative elemental analyses of solids that are difficult to digest are hallmarks of the DC Arc technique. The earliest DC Arc instruments relied on photographic plate detectors. ... read more

  • Hyphenation: The Next Step in Thermal Analysis

    Friday, January 01, 2010
    Technical Article
    Kevin P. Menard Richard Spragg Greg Johnson Craig Sellman
    Thermal analysis, like most mature technologies, sees mostly incremental increases in its capabilities, such as the introduction of modulated temperature techniques in the early 1990s or the ... read more

  • Thermosets: How to Avoid Incomplete Curing

    Friday, January 01, 2010
    Technical Article
    Steve Sauerbrunn Rudolf Riesen
    Oligomers and monomers that react and polymerize to form a rigid network with elevated temperatures are called thermosets. Thermosetting oligomers have been used for several decades to produce ... read more
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