Cathodeon Deuterium Lamp for HPLC and UV-Vis Spectrophotometers
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Cathodeon |
| Pricing | Available Upon Request |
Overview
The Cathodeon Deuterium Lamp is a high-stability, low-noise ultraviolet (UV) continuum light source engineered specifically for integration into high-performance liquid chromatography (HPLC) detectors and UV-Vis spectrophotometers. Operating on the principle of deuterium gas discharge in a sealed quartz envelope, it emits a continuous spectral output from approximately 190 nm to 400 nm — covering the critical far-UV to near-UV range required for quantitative absorbance detection in analytical chemistry. Designed for OEM compatibility and field replacement, each lamp undergoes factory calibration and performance validation against key photometric parameters including spectral noise floor, baseline drift (<0.5% per hour under stabilized conditions), wavelength accuracy (±0.2 nm at 253.7 nm reference line), and radiant intensity stability (CV 2,000 hours typical), consistent arc positioning, and minimal thermal drift during extended duty cycles.
Key Features
- Continuum UV emission spectrum spanning 190–400 nm with smooth spectral profile and minimal discontinuities
- Low electronic noise design optimized for high-sensitivity absorbance detection in HPLC UV/VIS detectors
- Pre-aligned cathode-anode geometry ensuring repeatable beam collimation and optical coupling efficiency
- Quartz envelope with synthetic fused silica window transmitting >90% at 190 nm
- Compliant with RoHS directives and free of hazardous substances per IEC 62321
- Integrated thermal management structure minimizing warm-up time (<15 minutes to photometric stability)
- Electrical interface compatible with standard DC-powered lamp housings used in Agilent 1200/1260/1290 and Waters 2489/2998 detector platforms
Sample Compatibility & Compliance
The Cathodeon Deuterium Lamp is validated for use across multiple generations of commercial HPLC UV detectors and benchtop UV-Vis spectrophotometers requiring stable broadband UV illumination. It meets functional equivalence requirements for original equipment manufacturer (OEM) replacement in instruments compliant with ASTM E275 (Standard Practice for Describing and Measuring Performance of UV-Vis Spectrophotometers) and ISO/IEC 17025:2017 (General Requirements for the Competence of Testing and Calibration Laboratories). Each unit is supplied with traceable calibration documentation referencing NIST-traceable spectral irradiance standards. The lamp housing conforms to IEC 61000-6-3 (EMC emission limits) and operates within Class I laser product safety guidelines per IEC 60825-1 when installed in enclosed optical systems.
Software & Data Management
While the lamp itself is a passive optical component, its performance directly impacts data integrity in instrument control software environments such as OpenLab CDS, Empower, and Unifi. Cathodeon lamps support full audit trail functionality when deployed in systems configured for FDA 21 CFR Part 11 compliance — including electronic signature capability, user access controls, and immutable event logging for lamp installation, runtime tracking, and end-of-life alerts. Instrument firmware automatically recognizes lamp identity via standardized I²C-compatible serial identification protocols where supported, enabling automated calibration history synchronization and predictive maintenance scheduling based on cumulative operating hours.
Applications
- Quantitative analysis of pharmaceutical actives and impurities in HPLC-UV methods per USP and ICH Q2(R2)
- Method development and validation requiring high photometric precision and low baseline variability
- Environmental testing of nitrate, nitrite, and aromatic hydrocarbons by UV absorption
- Quality control of nucleic acid and protein samples using A260/A280 ratio measurements
- Calibration verification of spectrophotometer wavelength accuracy using holmium oxide or didymium filters
- Supporting GLP-compliant laboratories where documented lamp performance history is required for regulatory audits
FAQ
What is the typical rated lifetime of the Cathodeon Deuterium Lamp under standard operating conditions?
The nominal operational lifetime is ≥2,000 hours when operated within specified current and thermal limits; actual service life depends on cycling frequency, ambient temperature, and power supply stability.
Is this lamp compatible with Agilent 1260 Infinity II UV-Vis detector models?
Yes — the Cathodeon Deuterium Lamp is mechanically and electrically matched to the Agilent G1314F/G1315D lamp module footprint and pinout configuration.
Does the lamp include factory calibration data for wavelength and intensity?
Each unit ships with a Certificate of Conformance listing measured spectral noise, 253.7 nm intensity, and baseline drift values recorded during final QA testing.
Can the lamp be used in ozone-generating applications?
No — the quartz envelope is not doped for VUV transmission; ozone generation requires specialized MgF₂ windows and sub-190 nm output.
How is lamp authenticity verified during installation?
Lamp identity can be confirmed through physical model marking (CATHODEON-D2-XXX) and, where integrated, via digital handshake with instrument firmware supporting lamp ID protocols.
