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

Lamp turret

2 lamps are powerd simultaneously (one preheated)

Lamp current adjustment

0~20mA

Lamp power supply mode

400Hz square wave 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, 1.2nm, automatic change

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/min

Gas line protection

Fuel gas leakage alarm/min

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

LEC 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. Reporting number is in the range of 1~99

Measurement mode

Automatic cureve fitting with 3~7 standards; Sensitivity auto-correction

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-Acetylene

Cu: Characteristic concentration≤0.025mg/L, Detection limit≤0.006mg/L;

Function Expansion

Hydride vapor generator can be connected for hydride analysis

Dimensions and weight

Main unit

102×49×54cm, unpacked 80kg