สเปกโตมิเตอร์ , absorbance , เสปกโตมิเตอร์ Model : WFX-320 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 number

2 lamps (one preheating)

Lamp current adjustment

Micro-computer control

Adjustment range:  0~20mA,                              

Lamp power supply mode

Powered by square pulses

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

Detection and Data Processing System

Detector

Photomultiplier with high sensitivity and wide spectral range.

Electronic and micro-computer system

Light energy and negative high-voltage auto-balance

Display mode

LED display of energy and measurement values, concentration direct reading

Read mode

Transient, integral, peak height, peak area.

Integral or sampling time is 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 rang of 1-99

Measurement mode

3~7 standards can be determined for curve fitting.  Sensitivity correction available.

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

Flame Analysis

Burner

10cm single slot all-titanium burner   

Spray chamber

All-plastic spray chamber.

Nebulizer

High efficiency glass nebulizer with metal sleeve.

Position adjustment

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

Gas line protection

Fuel gas leak alarm

Characteristic Concentration and Detection Limit

Air-C2H2 flame

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

Function Expansion

Flameless analysis with WF-1C graphite furnace system available.

Hydride vapor generator can be connected for hydride analysis.

Dimensions and Weight

1020 x 490 x 540 mm, 80kg unpacked