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The HEALTH AND HUMAN SERVICES, DEPARTMENT OF | NATIONAL INSTITUTES OF HEALTH has issued a Tender notice for the procurement of a Multisizer 4E Coulter Counter in the USA. This Tender notice was published on 23 May 2026 and is scheduled to close on 03 Jun 2026, with an estimated Tender value of Refer Document. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 141870761, while the tender notice number is 75N98026Q00434 and Registering on the platform.
Procurement Summary
Country: USA
Summary: Multisizer 4E Coulter Counter
Deadline: 03 Jun 2026
Posting Date: 23 May 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 141870761
Document Ref. No.: 75N98026Q00434
Competition: ICB
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: Refer Document
Purchaser's Detail
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Login to see detailsTender Details
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 s...
Notice ID: 75n98026q00434
Department/Ind. Agency: health and human services, department of
Sub-tier: national institutes of health
Office: national institutes of health olao
Product Service Code: 6640 - laboratory equipment and supplies
NAICS Code: 334516 - Analytical Laboratory Instrument Manufacturing
Inactive Dates: jun 03, 2026
Inactive Policy: manual
Documents
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