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The HEALTH AND HUMAN SERVICES, DEPARTMENT OF | FOOD AND DRUG ADMINISTRATION has issued a Tender notice for the procurement of a Qels Dynamic Light Scattering Detector in the USA. This Tender notice was published on 11 Sep 2026 and is scheduled to close on 16 Sep 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. 148939058, while the tender notice number is 75F40126Q00371 and Registering on the platform.
Procurement Summary
Country: USA
Summary: Qels Dynamic Light Scattering Detector
Deadline: 16 Sep 2026
Posting Date: 11 Sep 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 148939058
Document Ref. No.: 75F40126Q00371
Competition: ICB
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: Refer Document
Purchaser's Detail
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Email: Login to see tender_detailsLogin to see details Tender Details OPQR has a requirement to obtain an advanced dynamic light scattering detector to enhance characterization capabilities for emerging pharmaceutical products and complex biologics. For a quoter's detector to be deemed acceptable, the following salient characteristics shall be met: Documents
QELS Dynamic Light Scattering Detector: Real-time hydrodynamic radius measurement capability that operates inline with Field-Flow Fractionation separation to provide simultaneous size characterization as samples elute from the FFF system.
Compatibility with Existing FFF System: Must be fully compatible with and integrate seamlessly into the existing FFF system, including hardware connections, software integration with chromatography software, and synchronized data acquisition with existing MALS detectors.
High-Sensitivity Detection: Capable of measuring hydrodynamic radii across a wide dynamic range from approximately 10 nm to 1000 nm to accommodate diverse sample types including proteins, protein aggregates, liposomes, and lipid nanoparticles.
Orthogonal Size Validation: Provides diffusion-based size measurements that complement separation-based FFF analysis, enabling validation of particle size distributions and detection of sub-populations or aggregates that may not be fully resolved by separation alone.
Data Correlation and Analysis: Integrated software functionality that enables direct correlation between molecular weight data from MALS detection and hydrodynamic size from DLS detection to provide comprehensive analysis of absolute molar mass, root-mean-square radius, and hydrodynamic radius.
Data Output: Generates validated, audit-trail-compliant data files suitable for regulatory submissions and scientific publications, with full integration into existing software platform for unified data processing and reporting.
Maintenance and Support: Technical support, software updates, preventive maintenance, and alignment with FDA's quality assurance requirements f...
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