This Pre-Solicitation opportunity from Department Of Health And Human Services was posted on May 22, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.
Multisizer 4e Coulter Counter
Contract Overview
Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.
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AI Contract Overview
The contract seeks to procure the Multisizer 4e Coulter Counter, a sophisticated instrument designed to provide enhanced functionality and analytical capabilities for measuring cell size, counts, and distribution using the Coulter method across multiple clinical research protocols. This device utilizes patented digital pulse processing technology to deliver precise particle sizing within a 0.2 to 1,600 micrometer range and includes features such as automatic aperture blockage detection and clearing, fluid level monitoring, and barcode scanning for samples and consumables. It supports flexible operation with selectable stirrer speed and direction, multiple aperture tube sizes, and a broad measurement range with high linearity and dynamic accuracy. The instrument offers comprehensive data output including particle count, size, volume distribution, and detailed pulse distribution statistics with up to 400 size classes and the capability to reprocess data without re-running samples. It supports various counting modes and real-time volume change detection facilitated by its proprietary high-speed digital pulse processor. The package includes necessary accessories such as multiple aperture tubes, sample beakers, cleaning and diluent solutions, and calibration standards, along with installation services. The contract is issued by the National Institutes of Health located in Bethesda, Maryland, with a response deadline in early June 2026, and does not involve any set-aside provisions.
General Info
Agency
NAICS
Place of Performance
MD, 20892, USASet-Aside
Timeline
Submission Closed
Organization & Contact Information
Full Description
The required Multisizer provides improved functionality and analysis capabilities, in addition to allowing continued measurement of cell size, counts, and distribution using the Coulter method across multiple clinical research study protocols.
Specifications & Requirements
The product shall include/use:
- Coulter method of measurement using patented digital pulse processing technology
- Automatic aperture blockage detection and clearing during runs and sample analysis
- Code scanner to scan bar codes on samples, electrolytes, aperture tubes, and sample beakers
- Fluid level monitoring for solutions and waste
- Selectable stirrer speed and direction
- Particle sizing range: 0.2 – 1,600uM
- Measurement range: 2 – 80% of aperture size
- Measurement linearity: Diameter ± 1%, Volume ± 3%
- Dynamic range (accuracy): 1:40 (diameter), 1:64,000 (volume)
- Accurate determination of sample cell number, size, distribution, and concentration
- Particle count, sizing, and volume distribution data, including diameter, volume, and area of number, number percent, number per mL, volume, volume percent, volume per mL, surface area, surface area percent, surface area per mL
- Pulse distribution data, including time, sequence and width for pulse height diameter, pulse height volume, pulse height volt, pulse width, pulse area, average pulse height diameter, average pulse height volume and average pulse width. Number distribution by width.
- Up to 400 size classes or channels with the ability to change number of size classes or channels and width and reprocess as needed without having to re-run the samples
- Time-stamped pulses up to 525,000 per single analysis
- Modes for Total Count (up to 500,000 counts), Modal Count (up to 100,000 counts), and Volumetric Count (up to 2000uL)
- Digital Pulse Processor with proprietary high-speed signal digitalization
- Real time detection of volume changes
- Stirrer with ability to adjust stir speed and direction for even particle distribution in sample suspensions
- 100uM and 400uM size aperture tubes, with instrument ability to use apertures ranging from 10uM up to 2000uM size as needed, with aperture tube calibration and verification
- 100/200mL beakers, with ability to use additional size beakers and accuvettes, as required by the sample type, sample volume, or other need
- Isoton II Diluent and Coulter Clenz solutions for instrument operation and cleaning, and spigot assemblies for both solutions
- Mixed Standards Kit (L2, L5, L10, L20, L40)
- 300uM Particle Standard
- Installation