Article Archives

Filter

Hide Filter

  • 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

  • Dynamic Mechanical Thermal Analysis Measurements Using a Rotational Rheometer

    Sunday, January 01, 2012
    Application Note
    Prajakta Kamerkar
    Many industries use a rotational rheometer on a daily basis to understand the mechanical properties and flow characteristics of a variety of viscoelastic materials. read more

  • Small-Scale Vane Rheometry

    Tuesday, August 02, 2011
    Application Note
    David Moonay
    Vane rheometry continues to become more well-known and popular. 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

  • Redefining the Rheometer

    Monday, October 27, 2008
    Application Note
    Steve Carrington
    The way in which materials flow or deform when a force is applied can have a direct impact on product performance. read more

  • Statistics in Analytical Chemistry: Part 25—Calibration Summary

    Thursday, February 01, 2007
    Technical Article
    David Coleman Lynn Vanatta
    In a modern chemical-analysis laboratory, virtually all of the testing equipment must be calibrated periodically. read more

  • Centrifuge Safety and Security

    Thursday, February 01, 2007
    Application Note
    Tammy Goodman
    For laboratories around the world, increasing health and safety legislation requires that equipment be operated and maintained so that every step is taken to maximize safety and security. read more

  • Reagent-Free Ion Chromatography Systems With Eluent Regeneration: RFIC-ER Systems

    Thursday, February 01, 2007
    Application Note
    Yan Liu Zhongqing Lu Chris Pohl John Madden Navette Shirakawa
    Since the introduction of ion chromatography (IC) in 1975, Dionex Corp. (Sunnyvale, CA) has continued to improve the performance of IC systems while developing new capabilities for the determination ... read more

  • The Nanoliter Syringes

    Thursday, February 01, 2007
    Technical Article
    Andrew D. Sauter
    Following an informal collaboration with Affymax (Palo Alto, CA), Agilent Technologies (Palo Alto, CA), and Chem-Space Associates (Pittsburgh, PA), studying electrospray ionization 1 (ESI), the ... read more

  • Flow Characterization: Selecting Appropriate Technology

    Tuesday, November 01, 2005
    Application Note
    Steve Carrington Joanne Langridge
    It is well known that measuring the rheological properties of materials contributes to the development of better products and helps predict end-use performance as well as the physical properties of a... read more
  • <<
  • >>