hplc flow control Articles

  • Calibration of a passive, in situ, integrative sampler for monitoring of microbial biotoxins in aquatic environments

    In this work, an integrative passive sampler based on a silicone membrane filled with a suspension of γ-Fe2O3 at pH 3.5 was developed. The novel device was calibrated for the measurement of microcystin concentrations in water. Laboratory calibration studies of the passive sampling devises under controlled conditions of temperature, water turbulence, and analyte concentration were ...


    By IWA Publishing

  • 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

  • The Clog Blog

    Clogging and over pressuring are definitely problematic for Liquid Chromatography columns. Back in 2005 John Dolan’s sage advice to chromatographers to make an LC column last forever was simple, “Never open the box!” As John pointed out, this is not practical and I have to agree. But as an LC column manufacturer I have seen remarks from customers regarding clogging as though it ...


    By Restek Corporation

  • Thermo Scientific connects at GPSG Brazil delivers enterprise-level productivity linking laboratories to ERP - case study

    The Global Pharmaceutical Supply Group (GPSG) Brazil is an APILA unit of Janssen-Cilag Farmacêutica Ltda., (www.janssen-cilag.com.br) located in São Paulo, Brazil. Janssen-Cilag is one of the world’s leading research-based pharmaceutical companies specializing in pain management and fungal disease. Janssen-Cilag is a member of the Johnson & Johnson family of companies; the ...

  • Better tools for fast and convenient Patulin analysis

    Analytical Standards and New SupelMIP SPE Cartridges The mycotoxin patulin is often found in rotten apples. It is mostly produced by Aspergillus, Penicillium and Byssochlamys and shows a variety of short-term and long-term effects in animal studies, ranging from gastrointestinal problems and neurotoxicity to genotoxicity and teratogenicity. Therefore, many countries set limits for patulin ...


    By MilliporeSigma

  • Webinar Recap: “Developing, Testing, and Troubleshooting Chromatography Method Transfer”

    Hi, I’m Tom Wheat, Principal Scientist at Waters, and I recently hosted a webinar entitled, “Developing, Testing and Troubleshooting Chromatography Method Transfer.” Over the course of the webinar, we discussed the transfer of chromatographic methods that occurs at many stages in the development and production of a product. In its simplest form, the method is moved from one ...


    By Waters Corporation

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