UV-Visible Spectrophotometers
Atomic Absorption Spectrophotometers
FTIR Spectrometers
Atomic Flourescence Spectrophotometer
Atomic Emission Spectrophotometer
X-Ray Fluorescence Spectrometer








Atomic Absorption Spectrophotometers– LAAS-210

    • The flame analysis technique adopting oxygen rich air acetylene flame as the substitution for nitrous oxide-acetylene flame for high temperature element analyses.
    • Automatic hollow cathode lamp (HCL) changeover. The high performance HCL can be used directly.
    • Auto-changeover and position optimization of integrated flame/graphite furnace atomizer.
    • Light-controlled graphite furnace power supplier, adopting FUZZY-PID temperature control technique and dual curve working mode, ensures fast heating, accurate and stable temperature control and good temperature reproducibility.  Temperature auto-correction function provided.
    • Graphite furnace with pneumatic control and pressure lock ensures constant pressure and reliable contact.
    • High accuracy and reproducibility of the graphite furnace auto-sampler, realizing fully automation of graphite furnace analysis.
    • Auto-ignition, automatic spectral bandwidth selection.
    • Fully automated wavelength scanning and peaking
    • Automatic setting of Gas flow
    • Perfect safety protection measures, alarm and automatic safety protection to fuel gas leakage, air pressure deficiency and abnormal flame extinction; spray chamber made of explosion proof material, all titanium burner and explosion proof stopper for flame analysis; alarm and protection function to argon pressure deficiency, insufficient cooling water supply, over-heating and over-current etc. in graphite furnace analysis.
    • Adopting large scale programmable logic array and Inter IC technique and highly reliable adapters for electric design.
    • Standard RS-232 serial interface communication
    • Easy and flexible WINDOWS Operating System, with multi-windows processing technology to observe the signal profile, the measured results and the calibration curve at the same time.  Various analytical programs, data, signals and graphics can bestored for later use.

Technical Specification
 
Model


Main Specification Wavelength Range 190-900nm
Wavelength Accuracy Better than ±0.25nm
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 0.004A/30min
Background Correction The D2 lamp background correction capability at 1A is better than 30 times.  The S-H background correction capability at 1.8A is better than 30 times.
Light Source System Lamp Turret 6-lamp turret ( Two high performance HCLs can be mounted on the turret to increase the sensitivity in flame analysis.); auto alignment;auto fine adjustment; fully automated scan and peak-picking
Lamp CurrentAdjustment Automatic adjustment and display, Wide pulse current: 0~25mA, Narrow pulse current: 0~10mA.
Lamp Power Supply Powered by two pulses(wide and narrow) simultaneously. 
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, auto-switch over
Atomizer Flame/GraphiteFurnace Flame or Graphite furnace atomizer automatic change over,automatic graphite furnace position optimization, automatic flame, height setting and horizontal position optimization,Automatic gas flow setting, alarm and automatic protection function for gas leak, abnormal flow,air-pressure deficiency and abnormal flame,extinction & automatic ignition
Graphite Furnace AutoSampler Sample Tray Capacity 55 sample cups and 5 cups for matrix modifier
Material of SampleCup Polypropylene
Volume of StandardCup 3ml for sample, 20ml for matrix modifier
Number of repeatable Measurements Up to 99 times
Sampling System 100µl and 5ml injectors, large flow sampling nozzle rinsing.
Sampling Precision and Repeatability Precision: 1%; Repeatability: 0.3% for min. sampling volume
Auto-Correction Sampling nozzle auto-correction,
sample cup height auto correction
Detection and Data Processing System Detector Photomultiplier with high sensitivity and wide spectral range
Software Windows 98/ME operating system
Analytical Method Working Curve Method(1st order and 2nd order fitting) with automatic sensitivity correction; standard addition method
Concentration Auto-calculation of concentration and content
Repeatable Measurement  Repeated measurement up to 99 times, automatic calculation of Mean v alue,standard deviation and relative standard deviation
Multi-task Functions  Sequential measurement for multi-element determination to the same sample (Max. 6 elements).
Condition Reading With model function
Result Printing Measurement data and final analysis report printout, editing with excel
Characteristic Concentration and Detection Limit Air-C2H2 Flame

Oxygen–rich Air-C2H2 Flame (For LAAS-210)		 Cu: Characteristic concentration ≤0.025mg/l,
Detection limit≤0.006mg/l;
Al:   Characteristic concentration≤ 0.4mg/l
Ba:  Characteristic concentration ≤ 0.22mg/l
Flame Analysis Burner 10cm single slot all titanium burner
Spray Chamber All plastic spray chamber
Nebulizer High efficiency glass nebulizer with metal sleeve
Graphite Furnace Analysis Temperature Range Room temperature ~ 3000ºC
Light Controlled Temperature Range 1500ºC -3000ºC,temperature auto-correction
Temperature Accuracy ≤1%
Characteristic Mass Cd ≤0.5 ×10-12g, Cu ≤5 ×10-12g, Mo ≤1×10-11g
Precision Cd≤3%, Cu≤3%, Mo≤4%
Safety Protection Protections for over-heating, over-current, and less cooling water and argon pressure monitoring functions
Catalog No. 35260108

 
Accessories Catalog No.
Air compressor 35260111
Hydride vapor generator 35260112
Pyrolytically coated platform graphite tube 35260113
Pyrolytically coated graphite tube 35260114
Normal graphite tube 35260115
High effeciency glass nebulizer 35260116