Description
The West Virginia Purchasing Division is soliciting bids for the one-time purchase of a Benchtop Powder X-Ray Diffraction (XRD) Instrument. The XRD Instrument will be used by West Virginia Geological and Economic Survey geoscientists in laboratory applications to determine minerals within rock samples. The contract item must meet or exceed the mandatory requirements listed in the specifications, including being a new, benchtop design, using American standard electrical power, and having software that performs phase identification, quantitative analysis, crystal structure, and Rietveld Refinement. Some key features required include a continuously variable divergence slit, a high-speed silicon strip detector, and an extended crystalline database. The contract will be awarded to the vendor that provides the contract items meeting the required specifications for the lowest overall total cost.
* The XRD instrument must be capable of operating at a minimum of 600-watts and not exceeding 1,200 watts of X-ray power using a standard Cu XRD x-ray tube.
* The system must have a continuously variable divergence slit that keeps the irradiated area of the sample constant throughout the entire 2-theta measurement range.
* The system must include a high-speed silicon strip detector capable of suppressing fluorescence effects of Fe, Co, Mn, or Ni.
* The system must come with an extended crystalline database, such as ICDD PDF2, PDF4+, and other PDF4s, as well as a Crystallography Open/Online Database.
* System must have a sample changer with spinning capability that can be easily removed or added by the user.
* Accessories should include a reference specimen, Ni Kβ filter for Cu radiation, and an anti-scatter protector at the minimum.
* Benchtop X-Ray Diffractometer must be covered under an extended warranty agreement for a minimum of one year.