Sequential Type ICP Emission Spectrometer

Spectrometer unit

Optical system Czerny-Turner mounting.
Double grating
Focal length 1000 mm
No. of diffraction grating grooves and wavelength range 3600 grooves/mm for 160 to 458 mm
1800 grooves/mm for 458 to 850 mm
Reciprocal dispersion 0.22 nm/mm(3600 groves)
0.44 nm/mm(1800 groves)
Detector Photo-multiplier tube
Slit Entrance slit 20 µm
Exit slit 30 µm
Wavelength scanning Sine-bar method
Driven by a computer controlled pulse motor
Minimum step wavelength 0.0002 nm
Maximum speed 50 nm/sec (3600 grooves)
Temperature control Proportional control method 38°C±0.1°C
Exhaust system Rotary pump exhaust capability 160 liters/minute
With oil backflow prevention valve

ICP Light source

Torch unit Cyclone chamber (misting chamber)
Quartz plasma torch
Coaxial type nebulizer
Observation position switching Up and down, 2 steps (during radial observation)
Gas controller 3 plasma flow channels
Flow rate setting range (computer controlled)
Coolant gas 2 to 20 liters/minute
Plasma gas 0.2 to 1.4 liters/minute
Carrier gas 0.1 to 1.5 liters/minute
Purge gas 3.5 liters/minute
Axial observation attachment Direction of observation can be changed (radial/axial)

Radio frequency generator

Oscillator Crystal oscillator
Frequency 27.120MHz ±0.05% (ISM band)
Output 0.8, 1.0, 1.2, 1.4, 1.6, 1.8kW
Output stability Within ±0.3%
Radio frequency circuit element Transistor
Ignition method Fully automatic ignition
Load matching Automatic matching (auto tuning)
With safety function Radio frequency generator temperature fault detection

Photometry and control

Negative high voltage power supply Variable 16 steps
Photometric method Sequential element measurement method
Dynamic range 9 figures

Data processor
Personal computer

CPU Intel Celeron 2.0 GHz or higher
Memory Main memory: RAM 64 MB
External memory device 1 CD-ROM installed
3.5 inch floppy disc unit, 1 drive built-in
Hard disk over 40 GB
Display 15 inch color TFT
Printer (option) Monochrome laser printer
Matrix inkjet printer

For Research Use Only. Not for use in diagnostic procedures.

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