Certificate of Analysis
| Product: | Perls' 1 | |
| Code: | HK021b | |
| Lot: | 251036 | |
| Issue Number: | 1 | |
| Issue Date: | 16/10/2025 | |
| Expiry Date: | 2027/10 | |
| Date of Production: | 15/10/2025 | |
| Storage: | Store in a cool, dry, well-ventilated place. | |
| HK021b is an aqueous solution of potassium ferrocyanide. It is a component in the Perls' Iron 1 & 2 (Twin Pack) HS650 for the demonstration if iron proteins in tissues. | ||
| This product has been checked against the current TCS specification for the following test(s): | ||
| Result | ||
| Reagent Formulation Check | SOP Manual 6 | Conforms |
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For professional use only. |
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TCS Biosciences Ltd 
