Atomic Absorption Spectrophotometer NAAS-404 ensures a wavelength range of 185 to 900 nm for comprehensive element detection. It features an automatic eight lamp turret for multi element analysis. Our titanium burner head enhances durability and safety under demanding conditions. It has multi-step temperature programming that enables precise furnace control for the detection of trace elements. This automatic gas control simplifies operation and ensures enhanced data management.
| Integration |
Flame/Graphite Furnace Integrated Machine |
| Lamp Holder |
Eight lamp automatic turret, automatic alignment |
| Lamp Current |
Pulsed power supply |
| Optical System |
Fully enclosed, 1800 mm grating |
| Wavelength Range |
185 to 900 nm, automatic peak search, optical optimization |
| Wavelength Accuracy |
≤ 0.15 nm |
| Wavelength Repeatability |
< 0.1 nm |
| Spectral Bandwidth |
0.1, 0.2, 0.4, 0.7, 1.0, 1.4, 2.0 nm (auto switching) |
| Baseline Stability |
≤ ±0.002 A / 30 min (static)
≤ ±0.004 A / 30 min (dynamic) |
| Absorbance Range |
0 to 4 A |
| Detector |
Imported photomultiplier tube |
| Ignition Type |
Microcomputer-controlled, automatic ignition |
| Gas Control |
Automatic gas control system |
| Burner Head |
Full titanium, 50 mm or 100 mm |
| Atomization Chamber |
Polymer explosion-proof, corrosion-resistant |
| Nebulizer |
Efficient glass atomizer (customizable) |
| Flame Detection Limit (Cu) |
0.002 µg/mL |
| Flame Precision |
RSD ≤ 0.5% |
| Graphite Furnace Heating |
Vertical heating |
| Temperature Control |
Vertical optical monitoring, graphite tube wall |
| Temperature Range |
Ambient to 3000°C |
| Temperature Program Steps |
Up to 20 steps automatic control |
| Enrichment Capability |
Up to 20 times |
| Graphite Detection Limit (Cd) |
0.4 × 10⁻³ g |
| Graphite Precision |
RSD ≤ 2% |
| Cooling System |
Optional water circulation system |
| Safety Features |
Graphite tube damage, water flow, air pressure alarms, overheating protection |
| Communication Interface |
PC connectivity, software-controlled |
| Power Supply |
110/220V, 50/60 Hz, 5000 VA |
FAQ for Atomic Absorption Spectrophotometer NAAS-404
1: What is the advantage of dual atomization modes in the Atomic Absorption Spectrophotometer NAAS-404?
Dual atomization in Atomic Absorption Spectrophotometer NAAS-404 combines flame and graphite furnace techniques, providing flexibility for analyzing both high-concentration and ultra-trace metal samples efficiently in one system.
2: How does the vertical heating system improve accuracy in the Atomic Absorption Spectrophotometer NAAS-404 ?
Vertical heating in Atomic Absorption Spectrophotometer NAAS-404 ensures uniform temperature distribution, reducing thermal gradients and improving reproducibility during graphite furnace analysis for sensitive elements.
3: What safety mechanisms are integrated into the Atomic Absorption Spectrophotometer NAAS-404?
Atomic Absorption Spectrophotometer NAAS-404 includes alarms for graphite tube damage, water flow interruption, and gas leakage, along with automatic shutdown and overheating protection to safeguard operators and equipment.
4: Why is multi-step temperature programming important in the Atomic Absorption Spectrophotometer NAAS-404?
Up to 20 programmable steps allow precise temperature control for drying, ashing, and atomization stages, enabling optimized conditions for different sample matrices.
5: Can Atomic Absorption Spectrophotometer NAAS-404 handle digital data integration?
Yes, Atomic Absorption Spectrophotometer NAAS-404 features PC connectivity and software control, allowing real-time monitoring, automated reporting, and easy data export for compliance with modern lab standards.
