Blos technology enhances NPD lifetime and stability
 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’s very high operational stability and long lifetime has been available in Europe - now Agilent is making this technology available globally. The Blos bead for the Agilent NPD is based on a high-performance glass material technology. When compared to the legacy white ceramic bead (also sold as an Agilent NPD option), the Blos bead has:
- Longer bead lifetime (more than 2x)
- 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
The Blos NPD is available as an option with new 7890A GCs or as an accessory for existing systems. See the 7890A ordering details page for part number information.
See the 7890A data sheet for Blos NPD specifications.
The Blos bead is also available as an aftermarket consumable (part number G3434-60806) to retrofit into existing 6890 and 7890 NPDs.
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