Flame Atomic Absorption Spectrophotometer

Main Specification

Wavelength range

190-900nm

Wavelength accuracy

±0.5nm

Resolution

Two spectral lines of Mn at 279.5nm and 279.8nm can be separated with the spectral bandwidth of 0.2nm and valley peak energy ratio less than 30%. 

Baseline stability

≤0.005A/30min

Background correction

The D2 lamp background correction capability at 1A is better than 30 times.

Light Source System

2 lamps are powered simultaneously (one preheating).

Lamp current adjustment range:0~20Ma.

Lamp power supply mode

Powered by 400Hz square pulse

Optical System

Monochomator

Single beam, Czerny-Turner design grating monochromator

Grating

1800 l/mm

Focal length

277mm

Blazed wavelength

250nm

Spectral bandwidth

0.1nm, 0.2nm, 0.4nm, 1.2mm 4steps

Adjustment

Manual adjustment for wavelength and slit

Flame Atomizer

Burner

10cm single slot all-titanium burner

Spray chamber

Corrosion resistant all-plastic spray chamber.

Nebulizer

High efficiency glass nebulizer with metal sleeve, sucking up rate:

6-7mL/min

Position adjustment

Manual adjusting mechanism for vertical, horizontal positions and the rotation angle of the burner.

Gas line protection

Fuel gas leakage alarm.

Detection and Data

Processing System

Detector

R928 Photomultiplier with high sensitivity and wide spectral range.

Electronic and

micro-computer system

Automatic adjustment of light source power. Light energy and negative high-voltage auto-balance.

Display mode

LED display of energy and measurement values, concentration direct reading.

Read mode

Transient, time average, peak height, peak area. Integral time is selectable in the range of 0.1-19.9s.

Scale expansion

0.1~99

Data processing mode

Automatic calculation of mean, standard deviation and relative standard deviation. Repeating number is in the range of 1-99

Measurement mode

Automatic curve fitting with 3~7standars; Sensitivity auto-corrrection.

Result printing

Measurement data, working curve, signal profile and analytical conditions can all be printed out.

Instrument self-check

Check current status of each function key.

Characteristic

Concentration and

Detection Limit

Air-C₂H₂ flame

Cu: Characteristic

concentration≤0.025mg/L, Detection limit≤0.006mg/L;

Function Expansion

Hydride vapor generator can be connected for hydride analysis.

Dimensions and

Weights

1020(L)´490(W)´540(H)mm, unpacked 80Kg