Sharper peaks, better separations

Nitrogen Phosphorus Detector (NPD)

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. The key component to NPD performance is its bead. Agilent has acquired the worldwide manufacturing rights to the Blos bead for Agilent NPD. The Blos bead for the Agilent NPD is based on a high-performance glass material technology.


  • Longer bead lifetime
  • 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

Do you want to know more about this system? Please contact one of our experts and they will help you find the best system for your analyses.