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  • Mercury Analyzers in the Laboratory

    Wednesday, March 20, 2013
    Mercury is a toxic element, harmful to the environment and poisonous to humans, even at very low levels. It is generated by industry, by burning fossil fuels and as a by-product of some bacteria. Read More

  • Point-of-Care Tests for the Diagnosis of Myocardial Infarction

    Tuesday, March 19, 2013
    Clinical guidelines from the disciplines of cardiology and laboratory medicine recommend the measurement of cardiac biomarkers as soon as possible in patients who present with suspected myocardial infarction. The measurement of cardiac troponins is ... Read More

  • Point-of-Care Tests for the Blood Lipid Profile

    Friday, March 15, 2013
    With the exception of 1918, when influenza was the leading cause of death in the United States, cardiovascular disease (CVD) has had that honor for the last 100 years. CVD is also the leading cause of death worldwide. According to the World Health ... Read More

  • Erythrocyte Sedimentation Rate (ESR): Automated Analysis

    Wednesday, March 13, 2013
    The erythrocyte sedimentation rate (ESR), or the sed rate, is a simple, nonspecific marker of underlying inflammation. It is often used to screen patients with fevers of undetermined origin, arthritides, muscle pains, and other vague symptoms. Read More

  • HPV and Cervical Cancer

    Tuesday, March 05, 2013
    Human papillomaviruses (HPVs) are small, nonenveloped, double-stranded circular DNA viruses. They cannot be cultured by conventional microbiological methods, and are classified based on similarities in nucleic acid sequences. Read More

  • Guide to Solid Phase Extraction Systems

    Monday, February 18, 2013
    Solid phase extraction (SPE) is a liquid chromatography method of separating a particular compound, or analyte, from a liquid mixture in which it is dissolved or suspended. This is commonly performed when separating an analyte of interest from other... Read More

  • Buyers’ Guide: Flow Cytometers

    Friday, February 15, 2013
    The ability to sort individual cells quickly based on their size or protein expression has had a significant, positive impact on any area of cell biology research or medicine in which a mixed population of cells needs to be sorted out. This is ... Read More

  • MRSA Infection Control: Issues and Tests

    Wednesday, January 30, 2013
    Methicillin, the first beta-lactamase-resistant penicillin, was introduced in England in 1959, and strains of methicillin-resistant Staphylococcus aureus (MRSA) were being reported as early as 1961. During the first ten years since those reports, ... Read More

  • Overview of X-Ray Diffraction Systems

    Friday, January 04, 2013
    X-ray diffraction—analyzing the diffraction patterns that result when a beam of X-rays scatters off of atoms in a crystal structure—is a powerful tool for studying molecular structure. Analyzing the specific angles of the diffracted X-rays, as well ... Read More

  • Ion Chromatography System Purchasing Guide

    Friday, January 04, 2013
    Ion chromatography systems are used to separate charged particles from a liquid and measure their concentration with sensitivity down to parts per billion. Ion chromatography (IC) analytes include anions such as fluoride, chloride, nitrate, nitrite,... Read More

  • H5N1 Avian Influenza: An Emerging Disease

    Thursday, December 20, 2012
    Wild aquatic birds are thought to be the natural reservoir of all known subtypes of influenza A virus. Based on their virulence in chickens, avian influenza A/H5 and A/H7 subtypes are further classified into low pathogenic or highly pathogenic ... Read More

  • Buyer’s Guide to Water Baths and Chillers

    Tuesday, December 18, 2012
    Water baths and chillers are used to heat or cool liquid samples and maintain them at a constant temperature. They are ideal for substances that cannot be exposed to direct heat, such as flammable liquids or biological materials. Read More

  • Purchasing Guide to Microplate Readers

    Friday, December 14, 2012
    Some pieces of laboratory hardware are ubiquitous. Pipettors are one example, and microcentrifuges another. Then there are microplate readers. Read More
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