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.

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portable uv vis

How can the SSEF Portable UV-Vis be used for gemstone analysis?

portable spectrometer uv vis

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

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