The Primini benchtop spectrometer is the world's most compact and inexpensive WDXRF instrument. Using just three crystals, the Primini is capable of analysis from F9 to U92 in a vacuum or helium atmosphere. Since it is a WDXRF unit, the Primini has exceptional resolution and superb light element sensitivity. As with all Rigaku benchtop WDXRF systems, the Primini contains all the special software features available in other members of Rigaku's ZSX series. An analyst's basic needs are all satisfied by this new instrument: quantitative, qualitative, and semi-quantitative analysis. Analyze loose powders, pressed pellets, liquids, and fused disks with ease and confidence using proven software and dependable instrumentation. Using flow bars, set-up of quantitative and qualitative routines has never been easier. The Primini can also use Rigaku's patented Ultra Carry® filters, which allow levels of detection never seen before in such a low-powered XRF unit. The spectrometer features a 6-position sample carousel with automated loading and is air cooled, eliminating the need for external cooling associated with traditional XRF instrumentation. The Primini also has no special power requirements: it operates on standard 110 volts.

The LabSrench Primini has been discontinued and replaced with the Supermini200.