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SPAS-01 is a classical arc optical emission spectrometer for express spectrum analysis of powders. The application range of this product is very extensive. It can analyze both conductive and non-conductive samples. It can process any powdered samples. Such samples include sand, soil, rock specimen, bottom deposits, glass, ceramics, metal chips, machine oil (for wear particles content) and other similar items. In fact, it can atomize, excite and analyze any content of the sample cell (a hollow carbon electrode). Metal rods can be analyzed directly when used as counter-electrodes.
These spectrometers were very popular in the past, yet were gradually replaced by focused solutions. For example, spark spectrometers, including ISKROLINE 100 and ISKROLINE 300, perform better in express analysis of metals and alloys, while express analysis of fluids would rather require an ICP spectrometer. Yet, a range of tasks that are best performed by arc solutions still exists. In the first place, it includes express analysis of powdered non-conductive materials. For example, soil samples can be processed with the aid of ICP spectrometers, yet such samples have to be dissolved first. This process may take as long as 24 hours, and it can hardly be called express analysis. SPAS-01 offers immediate analysis of such materials with minimized sample preparation. At the same time, it offers high accuracy combined with low detection limits. An alternative solution to this type of spectrometers would be X-ray spectroscopy. However, similar instruments delivering similar quality performance are tenfold or more expensive and still require sample preparation consisting in powdering the sample and followed by pelletizing into a relatively large pellet.
The three key factors preventing arc spectrometers from becoming history:
unique capabilities for solving the tasks where other solutions are either inapplicable or cost ineffective.
speed – one sample can be tested within less than 1 minute.
versatility – an extensive application range. While some tasks will require sample preparation and others can be solved with the aid of focused solutions, arc spectrometers can solve both.
SPAS-01 arc emission spectrometer applications include:
SPAS-01 offers any spectral lines within 185-930 nm with resolution starting from 0.007 nm (185-330 nm range) and from 0.03 nm (330-930 nm range) for spectral analysis.
SPAS-01 3σ detecting sensitivity in element spectral analysis of solid samples ranges from below 10-5 to 10-4 %.
The instrument consists of a spectrum excitation source based on PRIMA A arc discharge generator and a USHT-4 universal stand, a 2S36501633 spectrograph, a 24 linear CCD unit system, a control PC and a housing with operator work station.
| Concentration test range, % | from 10-5 – 10-4 to double digit values | |
| Random relative error (subject to measurement conditions), % | 5 – 15 | |
| Spectrum excitation source | Arc discharge types | 3-20A unipolar arc 3-18A unipolar arc 3-8A intermittent arc |
| Max. arc current stability, % (200-250V supply range, regardless of electrode gap change ) |
0.5 | |
| Max. power consumption, kW | 1.5 | |
| Dimensions, mm | 110 х 370 х 520 | |
| Max. weight, kg | 7 | |
| Operating spectrum range, nm | 185 – 930 | |
| Average spectrum resolution, nm | range, nm | |
| 185 – 330 | 0.007 - 0.01 | |
| 330 – 930 | 0.03 - 0.05 | |
| Average inverse linear variance, nm/mm | range, nm | |
| 185 – 330 | 0.56 | |
| 330 – 930 | 1.8 | |
| Photo sensors (TCD1304DG , linear CCD detectors by TOSHIBA), units | max. 24 | |
| Frame length, s | 0.004 – 60 | |
| Frame count | 1 – 500 | |
| Data interface | USB2.0 | |
| Frame transmission mode | all frames | available |
| frame average | available | |
| Power supply | (220+22-33) V, (50±2) Hz | |
| Max. power consumption, W | plasma off | 500 |
| plasma on | 2000 | |
| Max. weight, kg | 250 | |
Concentration test range for various samples from (10-5 – 10-4) % to double digit % values at 5-15% random relative error (subject to measurement conditions).
Minimum floor space required: 5 sq.m.
