633
S
SPECTROPHOTOMETERS
AAS-310/320,
Flame Atomic Absorption Spectrophotometer
Features:
High cost-effective flame AAS
Reasonable design, adopting the same key parts as in high
end instruments, ensures basic functions but less automation
to provide an economic model for users
Reliable integration of main unit with microprocessor
Built-in microprocessor with necessary auto-control and
data processing functions achieve high reliability of the
instrument.
Simple and easy operation
Eye-catching digital display, multi-function data processing
ability and fast function-key direct input realize easy and
fast analysis.
SPECIFICATIONS
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
Monochromator
Single beam, Czerny-Turner design grating monochromator
Grating
1800 l/mm
Focal length
277mm
Blazed wavelength
250nm
Spectral bandwidth
0.1 nm, 0.2nm, 0.4nm, 1.2nm, 4 steps
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 adjustment 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 value, 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 3~7 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-C 2 H 2 flame
Cu: Characteristic concentration
≤
0.025 mg/L,
Detection limit
≤
0.006mg/L;
Function Expansion
Hydridee vapor generator can be connected for Hydridee analysis.
Dimensions and Weight
1020 (L) x 490 (W) x 540 (H) mm, 80kg unpacked
Flame Type Atomic Absorption
