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| Product Name | Urine Specimen Diluent, Preservative-Free |
| Catalog No. | ATRD-0009 |
| Description | A buffered saline diluent designed for the dilution of human urine specimens prior to immunoassay, biochemical, and drug screening analysis, compensating for variable urine concentration between specimens. |
| Intended Use | Normalizing urine concentration for quantitative measurement of urinary biomarkers, hormones, metabolites, and drugs of abuse in clinical chemistry and immunoassay platforms. |
| Principle / Technology | Phosphate buffered saline provides consistent pH and ionic conditions; BSA serves as carrier protein to reduce analyte loss to container walls; creatinine normalization may be applied to corrected values. |
| Detection Method | Creatinine normalization, assay parallelism with serial dilutions |
| Sample Type | Random urine, first morning void, 24-hour urine collection specimens |
| Performance Range / Specifications | Parallelism 80–120% across 10-fold dilution range for most urine analytes |
| Sensitivity / LOD | N/A |
| Specificity | N/A |
| Reaction Conditions / Protocol | Dilute urine 1:2 to 1:100 as required for specific assay dynamic range; vortex after dilution. |
| Components / Formulation | PBS pH 7.4, BSA 1%, sodium azide 0.05% |
| Storage Conditions | 2–8°C |
| Shelf Life | 12 months |
| Package Specifications | 100 mL, 500 mL |
| Product Form | Liquid, ready to use |
| Quality Control | Creatinine recovery, preservative efficacy, lot-to-lot consistency in assay background |
| Key Features | Preservative free option available; ready to use; validated for urine chemistry and immunoassay panels; minimizes matrix effects |
For research use only, not for clinical use.
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