Portable UV-Vis
Developed in collaboration with scientists from the University of Basel, this portable spectrometer is a powerful gemmological tool. It can be used for various coloured gemstone applicatoins. Conceived specifically to resolve gemmological questions, this is a cost-effective solution that combines absorption, transmission and luminescence spectrometry. It is simple to use and highly mobile offering a USB port connection to any laptop computer.
Main features:
- Very light and highly sensitive spectrometer (2 year warranty)
- High-resolution spectrometer (200 – 1100 nm)
- Works in absorption, transmission and luminescence modes
- Very fast scanning time for a spectrum (few seconds)
- Easy sample handling
- Plug-and-play with USB 2.0 in your PC or laptop
- Sample Chamber – Fiber optic cable
- Light controller (transmission / luminescence)
- UV transparent light diffuser
- Electrical adapter
- System operation manual
- Spare Bulbs and bulb exchanging tools
- Large spectral database of gemstones included (PDF)
- Avasoft Basic program included
- Plastic storage case
- Truly portable! All components fit in a “shoe-box”
- 1-day training in Basel (included)
PRICE: 24’000 CHF (Swiss Francs)
DELIVERY TIME: 3 months
Please note: Shipping and taxes/import duty are extra. Please contact us for a quote.
How can the SSEF Portable UV-Vis be used for gemstone analysis?
In absorption & transmission spectrometry mode:
- Detection of copper in blue tourmaline (Paraiba-type or not?)
- Distinguish Fe-bearing rubies from Fe-poor rubies (e.g. from Burma)
- Distinguish Fe-bearing emeralds (e.g. Brazil and Zambia) from Fe-poor emeralds (e.g. from Colombia)
- Detection of green dye in jadeite
- Detection of chromium in green jadeite
- Indication of origin of sapphires
In luminescence spectrometry mode:
- Distinguish natural and flux synthetic red spinel
- Analyze fluorescent fissure fillings, e.g. polymer treated jadeite (B-Jade)
- Register chromium in sapphires below XRF detection limit and a number of other applications
Specifications
Lamp Sources
- Vis: Halogen lamp
- UV: series of 6 LEDs 300, 310, 320, 330, 340, 365 nm
- Luminescence: Three UV LEDs 365 nm
Spectrometer platform
Optical Bench
Wavelength range
Resolution
Stray light
Sensitivity
Detector
AvaSpec-2048-USB2
Symmetrical Czerny-Turner, 75 mm focal length
200-1100 nm
0.6 nm, depending on configuration
< 0.1%
20,000 (16-bit A/D) in counts/µW per ms integration time CCD linear array, 2048 pixels
Signal/Noise
AD converter
Integration time
Interface
200:1
16 bit, 2 MHz
1.11 ms – 10 min.
USB 2.0 high speed, 480 Mbps, RS-232, 115.200 bps
Sample speed
Data transfer speed
Power supply
Dimensions
Weight
1.1 msec /scan with on-board averaging
1.8 msec /scan
Default USB power, 350 mA
ca. 400 x 300 x 150 mm
4.7 kg