Product Overview
The Hollow Cathode Lamp is a high-performance line light source designed as the core matching accessory for atomic absorption spectrophotometers (AAS). Based on the hollow cathode discharge principle, it emits sharp-line spectra characteristic of the target element, providing the high sensitivity and precision required for trace element quantitative analysis.
The lamp features strong spectral line emission energy, high absorption sensitivity, good stability, low noise, and low drift, ensuring accurate and reproducible analytical results. With long service life—reaching up to 5000mAh for most elements (approximately 3000mAh for low-melting-point elements)—it offers excellent cost-effectiveness for routine and high-throughput laboratories.
Available in multiple interface types, the lamp is compatible with various domestic and imported atomic absorption spectrophotometers, making it a versatile and dependable choice for laboratories across diverse industries.
Key Features
1. Strong Spectral Emission Energy
Delivers high-intensity characteristic emission lines, ensuring high absorption sensitivity and low detection limits for trace element analysis.
2. Excellent Stability & Low Drift
After a 30-minute warm-up, baseline drift is ≤1% within 30 minutes, and the analytical line background is ≤1%, guaranteeing stable and reliable measurements.
3. Low Noise Performance
Emission intensity fluctuation noise is <0.1%, minimizing signal interference and improving analytical accuracy.
4. Long Service Life
Extended gas capacity and optimized cathode design extend the service life to up to 5000mAh for most elements (3000mAh for low-melting-point elements), reducing replacement frequency and operating costs.
5. Low Ignition Voltage
Ignition voltage is ≤360V, ensuring reliable lamp start-up and smooth integration with AAS instrument systems.
6. Wide Instrument Compatibility
Multiple interface configurations are available to match domestic and imported atomic absorption spectrophotometers, allowing flexible selection for different laboratory setups.
7. Comprehensive Element Range
A broad catalog of single-element lamps is available, covering commonly tested metallic and metalloid elements for diverse analytical applications.
Technical Specifications
| Parameter | Specification |
| Product Name | Hollow Cathode Lamp |
| Application | Light source for atomic absorption spectrophotometers |
| Available Elements | Ag, Al, As, Au, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mo, Na, Ni, Pb, Zn, Sn, Ca, K, Li, Mn, Ba, Bi, and more |
| Ignition Voltage | ≤360 V |
| Baseline Drift | ≤1% within 30 min (after 30 min warm-up) |
| Analytical Line Background | ≤1% |
| Emission Noise | <0.1% (emission intensity fluctuation) |
| Service Life | Up to 5000 mAh (most elements); ~3000 mAh (low-melting-point elements) |
| Instrument Compatibility | Domestic and imported AAS instruments |
Application Fields
- Environmental Monitoring: Trace metal analysis in water, soil, and air samples.
- Food & Agriculture: Heavy metal detection in food, beverages, and agricultural products.
- Pharmaceutical & Clinical: Element analysis in pharmaceuticals and biological samples.
- Metallurgy & Mining: Composition analysis of metals, alloys, and ores.
- Petrochemical & Materials: Impurity monitoring in chemicals and advanced materials.
- Academic & Research Institutions: Teaching and scientific research applications.
