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| Product Name | 0.1-0.3 µm Europium Time-Resolved Fluorescent Carboxyl Microspheres 610 nm |
| Catalog No. | IGM-HMM-0253 |
| Description | Alta DiagnoTech time-resolved fluorescent microspheres are carboxylated polystyrene beads internally dyed with a europium lanthanide chelate. Internal staining helps limit dye leakage while retaining surface immunoreactivity, and the long fluorescence lifetime supports delayed measurement to reduce short-lived background interference. |
| Intended Use | Development of immunochromatographic assays and other time-resolved fluorescence applications. |
| Principle / Technology | Internal europium-chelate fluorescence with delayed time-resolved detection. |
| Detection Method | Time-resolved fluorescence |
| Performance Range / Specifications | Particle sizes 0.1, 0.2 and 0.3 µm; 1.0% w/v solids; carboxyl surface; fluorescence emission at 610 nm. |
| Storage Conditions | 2-8 °C; do not freeze |
| Package Specifications | 1 mL, 5 mL, 10 mL and 100 mL |
| Product Form | Aqueous fluorescent polystyrene microsphere suspension |
| Key Features | Europium-chelate internal fluorescence 610 nm emission 0.1, 0.2 and 0.3 µm sizes Carboxyl-functionalized surface |
| Concentration | 1.0% w/v solids |
| Product Type | Time-resolved fluorescent polystyrene microspheres |
| Function / Efficacy | Long-lifetime fluorescent labeling for delayed detection with reduced transient background interference. |
| Functional Group | Carboxyl |
| Storage Buffer | Purified water containing 0.05% w/v ProClin 300 |
| Detection Wavelength | Fluorescence emission at 610 nm |
| Matrix | Polystyrene |
| Particle Size | 0.1, 0.2 or 0.3 µm |
| Ligand / Bonded Phase | Carboxyl surface modification |
For research use only, not for clinical use.
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