AAS-2630 Double Beam Atomic Absorption Spectrophotometer Automatic

AAS-2630 Atomic Absorption Spectrophotometer

Features

Using PC for automatic controlling & data processing;

Integrated design of the flame atomizer and the graphite furnace atomizer, both of which can be automatically switched;

Eight lamps automatic switch, automatically adjust supply and optimization of the beam position, pre-set optimization hollow cathode lamp working conditions for multi elemental detection convenient

Automatic ignition, automatic flow rate setting, turn off automatic protection, automatically adjusts negative high voltage, lamp current;

Automatic control wavelength scanning, automatic peak search completed within 30 seconds, Auto-zero, the gas flow is set automatically

Advanced and reliable the safety protection system, full range of safety protection for the operator

Hydride generator for option

The excellent quality of the optical system, optical system suspension design, the vibration and the environmental temperature changes can not affect the instrument performance

Convenient and reliable utility software assistant, comprehensive support the windows platform

The new design of the flame atomizer and high sensitivity of the graphite furnace.

Performance Index

1. Optical system

Wavelength: 190nm-900nm

Monochromator:  C-T, aberration

Wavelength accuracy:  ±0.15nm

Wavelength repeatability: <0.10nm

Baseline shift:  0.004A/30min

Detector: high sensitivity photomultiplier

Spectrum bandwidth: 0.1nm, 0.2nm, 0.4nm, 1.0nm, 2.0nm for option

Dispersion element: plane diffraction grating, 1800article/nm, scoring area 40x40mm2 

Resolution ratio: in 0,2nm spectral bandwidth, the half width of the measuring spectral line no more than0.2nm±0.02nm

2. Atomic system

(Cu) characteristic concentration: 3.0μg/ml, absorbance not less than 0.300Abs

(Cu) detection limit: <0.005μg/ml

Precision: RSD≤0.8%

Sprayer: high efficiency glass atomizer

Burner: 100mm titanium metal, air premixed

Atomizing chamber: corrosion resistant material

Position adjustment: auto setting for the optimum height of the flame burner and front and rear position

Safety: with many kinds of automatic protection

3. Graphite furnace atomic system

(Cd) characteristic concentration: 0.5x10-12g,

(Cd) detection limit: 3.0μg/ml, 15μL sample, absorbance not less than 0.31Abs

Precision: RSD≤0.3%

Heating temperature range: -3000℃ in room

Heating rate: >2000℃

Temperature control accuracy: ≤1%

Heating temperature control method: the power control method of the dry ashing stage, the atomization stage with the maximum power control

Heating condition setting: up to 11 programs, ramp heating-up, moment heating-up, maximum power heating-up

Safety: with the alarm and automatic protection when cooling water flow in lack, superheat and over current indicting by the argon under voltage

Background correction: in 1A deuterium background correction ≥30 times, in 1A self absorption background correction≥60 times

Graphite furnace heating method: constant power heating

Measurement method: air-acetylene flame method, hydride generator atomic absorption method, graphite furnace method

Concentration calculation: standard curve method (1-3 times curve), interpolation method, standard addition method

Repetition survey frequency: 1-20times, calculate average value, display standard deviation and relative standard deviation

Printing result: parameters print, data result print, graph print, summary report

Software: Windows 98/2000/XP

Data output: instantaneous value, integral value, peak value, peak area

4. Automation system

Eight lamps automatic switch, with the high-performance lamps

Auto scanning and peaking of the wavelength, auto transfer the slit

Auto setting the gas flow, to choose the best combustion ratio

Auto setting for the optimum height of the flame burner and front and rear position

Automatic alarm in fray-out of the flame, alarm in ignition failure

Water seal position confirmation protection

5. Instrument parameter

AAS

Voltage: AC 220V/50HZ

Power: 220VA

Weight: 100Kg

Volume: 1170mm (L)×480mm(W)×440mm(H)

6. Graphite furnace

Voltage: AC 380V/50HZ

Power: 12KVA

Weight: 450Kg

Volume: 410mm (L)×480mm(W)×440mm(H)

Operating temperature: 10℃~35℃

Operating humidity:  ≤80%

7. Standard Layout

Main host

Low noise oil free air compressor

Operating software

Accessories

Wooden case packaging and transportation