Description
Atomic absorption spectrometer with flame atomization Kvant- 2A
Kvant-2A is out of production! New model – Atomic absorption spectrometer with flame atomization Kvant-2m !!!
Designed for quantitative determination of metal impurities in liquid samples of various origin and composition by atomic absorption and emission spectra.
Single-lamp, with automatic tuning of the monochromator to a given wavelength, the replacement and adjustment of spectral lamps is done manually by the operator.
Determines up to 70 chemical elements. Limits of detection from 0.05 µg/l.
Areas of use
- Control of environmental objects (water, air, soil)
- Analysis of food products and raw materials for their production
- Agrochemistry
- Medicine and pharmacology
- Geology and Geochemistry
- Chemical, petrochemical, metallurgical and other industries
- Scientific research
Optical system
- Monochromator with holographic diffraction grating and automatic wavelength setting.
- A photodetector based on a silicon photodiode with an original signal amplification circuit that provides a high signal-to-noise ratio, high sensitivity in a wide range of the spectrum, and linearity of the photometric characteristic.
Basic Analysis Modes
- direct absorption with flame atomization
- atomization in a quartz cell (methods of cold vapor and volatile hydrides)
- atomic absorption with flow-injection preconcentration
- atomic emission
The delivery set of an atomic absorption spectrometer must include:
1) computer and software for instrument control and processing of measurement results;
2) the compressor is oil-free.
Specifications Kvant-2A
| Spectral range | |
| Lower limit of the range, nm | 185 |
| Upper limit of the range, nm | 860 |
| Pitch of the spectral interval, nm | 0,5 |
| Optical density reading range, B (e.o.p.) | from 0 to 3 |
| Background correction | Deuterium corrector with a speed of 1.3 ms |
| Implemented methods of analysis | Atomic absorption Atomic emission |
| Ability to work with flames | Propane – air Acetylene – air Acetylene – nitrous oxide |
| Flame Atomizer | Automatic flame selection Automatic burner height adjustment Chemically resistant structural materials that allow you to work with organic solvents |
| Spray | Sprayer – pneumatic, coaxial, available in two versions – titanium for working with organic solvents, plastic (made of polymethyl methacrylate) – for working with aggressive acids.
Tunable for sample flow from 3 to 6 ml/min. The efficiency of the formation of aerosols of aqueous solutions up to 24% |
| Sample consumption, ml/meas. | Not more than 0.5 |
| gas distribution block | Control and automatic adjustment of fuel gas and oxidizer consumption
Automatic ignition and extinguishing of the flame Automatic flame control and burner type detection Automatic flame extinguishing in case of insufficient pressure of oxidizer and combustible gas Five-channel system for monitoring and ensuring the safety of the gas system of the device |
| Gas preparation unit | Block of filters and pressure stabilizers for purification and reduction of gases used in the operation of the spectrometer |
| Performance | Up to 60 element definitions per hour |
| Power supply | Single-phase AC (220V ± 10%, 50Hz) |
| Overall dimensions, mm | 1095 x 560 x 435 |
| Weight, kg | 70 |
To expand the capabilities of the atomic absorption spectrometer, the following equipment can be supplied:
1) burners (5 pcs.) – propane-air burner ( three-slot) , propane-air burner (round, for emission mode) , burner “acetylene-air” (round, for emission mode ) , burner “acetylene – air” burner “acetylene-nitrous oxide”
2) spectral lamps and special socles.
