Blos Nitrogen-phosphorus Detector (NPD)

Blos Nitrogen-phosphorus Detector (NPD)

Nitrogen-phosphorus detectors (NPD) for gas chromatography are specific to nitrogen- or phosphorus-containing compounds and are well suited for environmental and forensic applications. A key component to NPD performance is its bead.

The Blos bead has very high operational stability and long lifetime. The Blos bead for the Agilent NPD is based on a high-performance glass material technology.


    • Blos bead has a longer bead lifetime (more than 2x) than ceramic bead.
    • More stable operation throughout the bead’s lifetime
    • For nitrogen containing compounds – similar sensitivity and selectivity specifications
    • For phosphorous containing compounds – superior sensitivity and selectivity specifications
    • Superior resistance to ambient humidity and moisture


How It Works



Analysis of Carbamate Pesticides Using Agilent 6820 Gas Chromatograph/Nitrogen Phosphorus Detector

The Agilent 6820 gas chromatograph/nitrogen phosphorus detector (GC/NPD) was employed to determine carbamate pesticides, following …