Lina Genovesi

Lina Genovesi

Articles by Lina Genovesi

  • Spectrofluorometers: Tools for Measuring Fluorescence Signature

    Friday, January 30, 2015
    Spectrofluorometers (or fluorescence spectrophotometers) measure the fluorescence signature of an analyte in a sample based on its specific excitation and emission wavelengths. The fluorescence signature can be correlated to the concentration level of the analyte in the sample. read more

  • PCR Enclosures: Essential for Improving PCR Accuracy

    Friday, October 24, 2014
    PCR enclosures are designed to provide effective decontamination of solutions, reagents, and equipment before and during polymerase chain reaction (PCR) manipulations in order to improve their accuracy. PCR enclosures, which include PCR workstations and PCR cabinets, are an essential addition to a... read more

  • DNA Sequencers: Cracking the Genomic Code

    Friday, October 24, 2014
    DNA sequencers automate the determination of the precise order of nucleotide bases—adenine, guanine,cytosine, and thymine—in a DNA region of interest. The order of the DNA bases is reported as a text string, called a read. read more

  • LC Columns: Pillars of Sample Purification and Analysis

    Monday, September 22, 2014
    Liquid chromatography columns, or LC columns, have been used in the food, chemical, petrochemical, and pharmaceutical industries and forensic, clinical, and medical determinations for sample purification and analysis. In an LC column, the sample interacts with the mobile phase and the stationary ... read more

  • Atomic Absorption Spectrometry: The Science of Atomization

    Monday, August 25, 2014
    Atomic absorption spectrometers (AAS) measure the concentration of atoms in a sample in the parts-per-billion range based on their ability to absorb light at a specific wavelength. Most samples analyzed by AAS are liquid samples, and solid samples can also be analyzed after liquefaction. read more

  • ICP-MS Systems: Broadening the Scope of Trace Metal Testing

    Friday, July 25, 2014
    Inductively coupled plasma-mass spectrometry (ICP-MS) is a type of mass spectrometry for measuring most of the elements in the periodic table with detection limits at or below the parts-per-trillion range. Most samples analyzed by ICP-MS systems are liquids. However, solid samples can also be ... read more

  • Total Organic Carbon Analyzers: Essential Tools for Water Quality Testing

    Friday, July 25, 2014
    A total organic carbon (TOC) analyzer measures the amount of TOC present in a liquid or water sample. In environmental applications, TOC is an important indicator of the amount of natural organic matter in the drinking water source, which correlates to the formation of carcinogens. read more

  • Blood Gas Analyzers: Expanding the Scope of Disease Diagnosis and Treatment

    Friday, May 23, 2014
    Clinicians use blood gas analyzers to measure the level of arterial oxygen tension (pO2), carbon dioxide tension (pCO2), and acidity (pH) to assist them in disease diagnosis and treatment. The pO2 is an indication of the pressure of oxygen dissolved in the blood, and the ease of movement of oxygen ... read more

  • Sonicators: The Science of Cavitation

    Monday, February 17, 2014
    Laboratory ultrasonic homogenizers or sonicators operate on a system of high-intensity ultrasonic waves. These ultrasonic waves create small vacuum bubbles in the liquid. When the bubbles attain a volume at which they can no longer absorb energy, they collapse violently during a high-pressure cycle.... read more
Page