UNSPSC 41181604: Immunofluorometer equipment

In this classification, Immunofluorometer equipment connotes a device to measure the fluorescence of fluorochrome-labeled antigen-antibody complexes. The concentration of these complexes may be measured by means of reflected light. A beam of light is passed through a solution in which a fluorochrome has been selectively attached to serum protein antibody molecules in suspension. The amount of light emitted by the fluorochrome label is detected by a photodetector, which converts light energy into electrical energy.

The amount of electrical energy registers on a readout system such as a digital voltmeter or a recording chart. This electrical readout is called the fluorescence value and is used to measure the concentration of antigen-antibody complexes. US FDA regulates Immunofluorometer equipment under 21 CFR 866.4520 and under FDA product code JZT.

UNSPSC 41181604 Immunofluorometer equipment is a Commodity code that captures specialized analytical instruments state and local governments buy for laboratory and field testing, though recent posted opportunities under this code show little direct alignment with immunofluorometry work—instead reflecting a broad range of laboratory, research, and operational equipment procurement activity across higher education, county, and municipal agencies.

State and local buyers under this code span primarily research universities (Mississippi State University, University of Southern Mississippi, University of Mississippi, University of Wisconsin-Madison, Texas A&M University System), county governments (Brazoria County Texas, Broward County Florida, Gwinnett County Georgia, Santa Clara County California), municipal departments (Albuquerque Police Department, Philadelphia Procurement Department, City of Albuquerque), and independent school districts (Klein Independent School District). Mississippi State University appears as a repeat buyer with multiple sole-source procurements posted between March and July 2026. Recent solicitations show equipment purchases for forensic laboratories (LC-QQQ mass spectrometers, GC-FID systems, crime lab supplies), environmental and water testing (nitrogen generators, pump calibrators, water sample analysis reagents, jar testers), aeronautical research (wind wall systems, motion-capture equipment, bore scanners), aquaculture operations (photobioreactors, algae dewatering systems, instrumentation and process control), and materials science and engineering research (rheometers, dynamic mechanical analyzers, spectrometry systems). Geographic activity concentrates in Mississippi (driven by Mississippi State University and University of Southern Mississippi procurements), Texas (Texas A&M, Brazoria County, Klein ISD), Florida (Broward County), California (Santa Clara County), Oregon (State of Oregon OSHA laboratory equipment), and scattered activity in Georgia, Wisconsin, Illinois, and Pennsylvania. Representative recent opportunities include Mississippi State University's sole-source request for a $5.186 million bundle of Thermo Fisher Scientific advanced microscopy systems (Helios 5 Hydra CX and Spectra 200 S/TEM) posted June 17 with July 6 objection deadline; the Texas Health and Human Services Commission's competitive request for IDEXX COLILERT reagents and water bottles for bacteriological testing, posted July 1 with July 8 response due; Brazoria County's RFP for a Liquid Chromatograph-Triple Quadrupole Mass Spectrometer system for the Sheriff's Office Crime Lab, posted April 15 with May 12 proposal deadline and estimated $300,000 budget from federal DOJ funding; and the State of Oregon OSHA Laboratory's multiple RFQs for specialized analytical equipment including QuantiFit2 respirator fit testers (June 3–10 deadline) and noise dosimeters (June 15–23 deadline). Sole-source procurements dominate the posting activity, with Mississippi State University and University of Southern Mississippi consistently using RFIN (Request for Information and Negotiation) notices to publish sole-source justifications and invite objection periods.