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| Product Name | Serum Separator Gel, Thixotropic Polymer |
| Catalog No. | ATR-SPS-0006 |
| Description | An inert thixotropic polyester gel with intermediate density between serum and blood cells, forming a stable physical barrier during centrifugation to enable clean serum separation in blood collection tubes. |
| Intended Use | Separation of serum from clotted whole blood in serum separator tubes for clinical chemistry, immunochemistry, and serology testing, enabling primary tube sampling without transfer. |
| Principle / Technology | During centrifugation at 1000–1300 × g, the gel temporarily liquefies due to thixotropic properties and migrates to the interface between cells and serum; upon deceleration, it reforms as a solid barrier. |
| Detection Method | Serum analyte stability over 7 days at 4°C, gel barrier integrity testing under transport conditions |
| Sample Type | Clotted whole blood in serum separator tubes |
| Performance Range / Specifications | Stable barrier at temperatures 4–40°C; specific gravity 1.04–1.05 g/cm³ |
| Sensitivity / LOD | N/A |
| Specificity | N/A |
| Reaction Conditions / Protocol | Blood drawn into SST tube; invert 5 times; allow to clot for 30 min at room temperature; centrifuge at 1000–1300 × g for 10 min. |
| Components / Formulation | Polyester-based thixotropic gel, inert and chemically stable |
| Storage Conditions | 15–25°C |
| Shelf Life | 18 months in sealed tube |
| Package Specifications | 100 tubes/box with clot activator and gel, sizes: 3.5 mL, 5 mL, 8.5 mL |
| Product Form | Gel coating in tube bottom |
| Quality Control | Barrier integrity testing, no interference with common clinical chemistry analytes, specific gravity |
| Key Features | Thixotropic barrier; enables primary tube sampling; no analyte interference; validated for clinical chemistry panels |
For research use only, not for clinical use.
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