The Agilent 8255 Nitrogen Chemiluminescence Detector (NCD) is a nitrogen-specific detector that produces a linear and equimolar response to nitrogen compounds. This is accomplished using a stainless steel burner to achieve high-temperature combustion of nitrogen-containing compounds to form nitric oxide (NO).
A photomultiplier tube detects the light produced by the subsequent chemiluminescent reaction of nitric oxide with ozone. Because of the specificity of the reaction, complex sample matrices can be analyzed with little or no interference.
- Nitrogen-specific detection for gas chromatography (GC)
- Picogram-level detection limits
- No hydrocarbon quenching
- Linear, equimolar response to organic nitrogen compounds
- Responds to ammonia, hydrazine, hydrogen cyanide, and NOx
- Redesigned burner and detector
- Optional configuration specific for nitrosamines
Use the detector status LED to quickly determine the status and
readiness of the detector. The LED changes color depending on
the current state of the detector.
• Green: Indicates that power is available for the heaters,
chiller (NCD), vacuum pump, and ozone generator. Note that
the GC supplies power to the detector electronics
independently of the power controlled by the switch on the
front of the detector.
• Yellow: Indicates that the detector is not ready for operation.
Power is on and available, but not all parameters have
reached operating setpoints. A warning or other message
may exist. Check the GC display.
• Red: Indicates a fault or other serious condition. A fault or
other message may exist. Check the GC display. The detector
cannot be used until the fault condition is resolved.
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