Article Archives

Filter

Hide Filter

  • The Benefits of HPLC Coupled With Mass Spectrometry for the Direct Quantitation of Underivatized ...

    Monday, April 04, 2016
    Application Note
    Chi Man Ng Wilhad M. Reuter
    Amino acids are critical biological components having multiple metabolic functions, particularly when linked together to form proteins, and have any number of important roles. read more

  • Pittcon 2013®: Developments in Liquid Chromatography

    Monday, May 13, 2013
    Technical Article
    Robert L. Stevenson, Ph.D.
    The first commercial liquid chromatograph was probably an amino acid analyzer. These ion exchange chromatographs were so specialized that they had almost no impact on chemical analysis outside of ... read more

  • Matrix Degradation Assays for Investigating Cell Invasion

    Tuesday, November 01, 2011
    Application Note
    Jun Ma Luke Armstrong Janet Anderl
    Tumor metastasis, inflammation, and development are accompanied by the invasion of cells through the extracellular matrix. read more

  • The State of Microscopy for 2012

    Tuesday, November 01, 2011
    Technical Article
    Barbara Foster
    In various recent interviews, I’ve been asked about the state of microscopy and, most specifically, the rise of technologies such as AFM (atomic force microscopy) and Raman confocal and the ... read more

  • New Products at Pittcon® 2011

    Thursday, March 10, 2011
    Application Note
    Jeanely Hunt, MS, MBA
    The following includes some of the latest advances in laboratory instrumentation debuting at Pittcon® 2011. read more

  • Reintroducing Countercurrent Chromatography to the Chemist

    Friday, October 24, 2008
    Application Note
    David Keay Philip Wood
    Ever since chemists began using separating funnels to isolate compounds by partitioning, they have understood the potential benefits of liquid/liquid chromatography, known today as countercurrent ... read more

  • Performance Evaluation of an Integrated Analytical HPLC

    Thursday, July 10, 2008
    Application Note
    Glyn Russell Phuong Truong Lindsay Buck Frankie Button
    As a routine analytical tool in the laboratory, there are many important performance requirements such as precision, reproducibility, and sensitivity for an analytical HPLC to achieve satisfactory use... 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
  • <<
  • >>