Multisizer 4e Coulter Counter
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The National Institutes of Health (NIH), under the Department of Health and Human Services, is issuing a Presolicitation for a Multisizer 4e Coulter Counter. This advanced laboratory instrument is required to enhance functionality and analysis capabilities for cell size, counts, and distribution using the Coulter method across multiple clinical research study protocols. This notice serves as an early indication of a forthcoming solicitation. Responses are due by June 3, 2026.
Scope of Work
The required Multisizer 4e Coulter Counter must provide improved functionality and analysis capabilities. Key specifications and requirements include:
- Measurement Method: Coulter method with patented digital pulse processing technology.
- Core Functionality: Automatic aperture blockage detection and clearing, integrated code scanner for samples and components, fluid level monitoring, and selectable stirrer speed and direction.
- Particle Sizing & Measurement:
- Range: 0.2 – 1,600uM
- Measurement Range: 2 – 80% of aperture size
- Linearity: Diameter ± 1%, Volume ± 3%
- Dynamic Range (Accuracy): 1:40 (diameter), 1:64,000 (volume)
- Data Output: Comprehensive particle count, sizing, and volume distribution data (diameter, volume, area, number, percentage, and per mL metrics), along with detailed pulse distribution data.
- Processing Capabilities: Up to 400 size classes/channels with re-processing ability, time-stamped pulses up to 525,000 per analysis, and specific modes (Total Count, Modal Count, Volumetric Count).
- Components & Consumables: Includes specifications for aperture tubes (10uM to 2000uM), beakers (100/200mL and others), specific solutions (Isoton II Diluent, Coulter Clenz), and calibration/standard kits.
- Installation: Required installation of the instrument.
Contract & Timeline
- Type: Presolicitation
- Set-Aside: None specified
- Response Date: June 3, 2026, 1:00 PM EDT
- Published Date: May 22, 2026
- Product Service Code: 6640 - Laboratory Equipment And Supplies
- Place of Performance: Maryland (MD 20892), United States
Contact Information
For inquiries, please contact John Burton at burtonjo@mail.nih.gov.