chromatography plate Articles

  • Yes, You Can Pick the Right TLC Plate – Part I

    “I’d like a box of TLC plates, please.” Sounds innocent enough, right? But when you have more than 500 plate options, things get a whole lot trickier. How do you dig through the layers (pun intended) to get the plates you need? TLC plates come in lots of fun forms and sizes—at least we think they’re fun! You can differentiate TLC plates by: Adsorbent material ...


    By Miles Scientific, Inc.

  • Evaluation of Priority Pollutant VOCs in Waste-Water and Solid Waste by EPA Method-624 Gas Chromatography

    Processing waste discharges, manufacturing effluents and sewage would not normally have been a problem 50 years ago, but the advent of almost unchecked industrial growth the latter half of the last century has created the POTENTIAL for a wide variety of characterized pollutants to enter the environment of any municipality. The toxic METALS are tested by approved State & Federal methods defined in ...


    By Buck Scientific Inc

  • Triclosan resistant bacteria in sewage effluent and cross-resistance to antibiotics

    The purpose of this study was to identify triclosan tolerant heterotrophic plate count (HPC) bacteria from sewage effluent and to determine cross-resistance to antibiotics. R2 agar supplemented with triclosan was utilised to isolate triclosan resistant bacteria and 16S rRNA gene sequencing was conducted to identify the isolates. Minimum inhibitory concentrations (MICs) of organisms were ...


    By IWA Publishing

  • Analysis of Anionic Contamination & General Quality Testing in Water from Sewage Treatment Plants and Industrial Discharge & Effluents by Colorimetry

    Problem The high concentration of Industry, Agriculture and People in and around the United States has changed the “nature” of our environment. There are Toxic Metals coming from various metallurgical processes; Plating, Foundry, Smelting, Milling, etc., which are readily determined by Atomic Absorption Spectroscopy (AAS). Volatile Organics from the many Petrochemical-based operations are ...


    By Buck Scientific Inc

  • What is a Syringe Pump?

    A syringe pump is a type of infusion pump originally developed to help administer drugs to patients in a controlled manner. Early attempts to construct infusion pumps were made in the 19th century. However, the first infusion device was introduced in the 1950s to be used in chemotherapy. In the 1970s, the development of ambulatory infusion technology enabled the pumps to be used in research; ...


    By Chemyx Inc

  • A Chemical Dynamics Model for CAH Remediation with Polylactate Esters.

    ABSTRACT: The polylactate esters of sorbitol, xylitol and glycerol are a class of new chemical compounds that slowly release lactic acid into groundwater. The lactic acid is biotransformed into pyruvic acid and subsequently into acetic acid releasing hydrogen in both steps. The hydrogen is used by naturally occurring dechlorinating bacteria to reduce PCE to ethene by way of TCE, DCE and VC. A ...


    By REGENESIS

  • Per-and Polyfluoroalkyl Substances (PFAS) – An Emerging Challenge

    Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a large group of chemicals that were used for decades in numerous industrial applications (e.g., fire-fighting and metal plating foams, aviation hydraulic fluid) and consumer goods (e.g., stain repellent for clothes, furniture and carpets, and non-stick coatings). Perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), both ...


    By SIREM

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