Puxi TAS-990 Series Atomic Absorption Spectrophotometer Real-Time Monitoring Automatically Sets Flame Height

Transverse Heated Graphite Furnace Design

The atomic absorption with transverse heated graphite furnace achieves uniform temperature distribution in the graphite tube, reduces chemical interference and memory effects, and improves atomization efficiency.

Intelligent Product Design

Equipped with AAWin analysis assistant software, making operation simple and stable.

Safety Protection System

Real-time flame monitoring: Automatically shuts off acetylene and triggers an alarm in case of accidental flameout;

Acetylene leakage alarm: Continuously monitors acetylene concentration inside the instrument and the working environment. If acetylene exceeds the warning level, the acetylene gas path is automatically closed.

Excellent Expandability

Features a simple and quick sampling system to handle diverse and complex analytical samples, easily meeting various analytical needs.

Technical Parameters:

Wavelength Range: 190-900nm

Spectral Bandwidth: 0.1; 0.2; 0.4; 1.0; 2.0nm

Wavelength Repeatability: 0.15nm

Wavelength Accuracy: ±0.25nm

Baseline Drift: 0.005A/30min

Precision: RSD≤1% (Flame, Cu, 7 parallel injections)

RSD≤1% (Graphite Furnace, Cd, 7 parallel injections)

Detection Limit: Cu: 0.006μg/mg (Flame)

Cd: 1.0X10?12g (Graphite Furnace)

Characteristic Concentration/Characteristic Mass: Cu: 0.03μg/mg/1% (Flame, 1ppm Cu > 0.17Abs)

Cd: 0.5X10?12g (Graphite Furnace, 3ppb Cd > 0.25Abs)

Cu: 1.0X10?1?g (Graphite Furnace, 0.1ppm Cu > 0.42Abs)

Measurement Range: 1ppb-10ppm