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Atomic Absorption Spectrophotometer AAS-004

Atomic Absorption Spectrophotometer Model AAS-004 offers baseline stability of ≤0.005A/30min and spectral bandwidth of 0.1nm, 0.2nm, 0.4nm, 1.2nm with automatic change over. The unsurpassed basic performance of the Atomic Absorption Spectrophotometer Model AAS-004 along with the built-in microprocessor with necessary auto-control and data processing functions achieve high reliability of the instrument satisfies the wide-ranging analytical needs of demanding customers.
Features:
- High cost-effctive 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:
Function Expansion:
Hydride vapor generator can be connected for hydride analysis ≤1%
Dimension:
1020 (L) × 492 (W) × 540 (H)mm
Weight:
80kg , Unpacked
Main Specification:
Wavelength Range:
190nm
900nm
900nm
Wavelength Accuracy:
±0.5nm
Resolution:
Two spectral lines of Mn at 279.5nm and 279.8nm can be energy separated with the spectral bandwidth of 0.2nm and valley- peak ratio less than 30%
Baseline stability:
≤0.005A/30min
D2 Lamp Background Correction:
1A better than 30 times
Optical System:
Monochromator:
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
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 verical, horizontal positions and the roatation 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.
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
Characteristics Concentration and Detection Limit:
Air Acetylene:
Cu: Characteristic concentration≤0.025mg/L, Detection limit≤0.006mg/L
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.

