What is Tripotassium EDTA
Tripotassium EDTA, also known as tripotassium ethylenediaminetetraacetate, referred to as EDTA-K3, is a chemical substance. It is also a chemical raw material. The molecular formula is C10H13K3N2O8. This product is a white crystalline powder, odorless, easily soluble in water, easy to absorb moisture, and molecular weight is 442.56.
The main purpose
It is used for extracorporeal blood anticoagulation. It is an anticoagulant additive for blood testing clinically. The pretreatment (anticoagulation treatment) of blood specimens is carried out in the process of clinical blood collection and testing.
Scope of application
EDTA salt can protect the cell components of the blood, does not affect the white blood cell count and size, has the least effect on the morphology of red blood cells, and can inhibit the aggregation of platelets, which is suitable for general hematology tests. Except for the separation and testing of platelets, it is not suitable for coagulation tests and platelet kinetic tests, nor is it suitable for calcium, potassium, sodium, iron, alkaline phosphatase, creatine kinase and leucine aminopeptidase The determination.
As a blood anticoagulant, EDTA tripotassium salt has higher solubility and faster anticoagulant speed compared with EDTA dipotassium.
Production process monitoring points:
1. The PH value range is 7.5±1.0;
2. The specific gravity of the solution is 1.460-1.470;
3. The temperature control of the whole reaction process;
4. To control impurities, use a plate and frame filter press to filter;
5. The drying time is controlled within 3-4 days, and the temperature is gradually increased;
6. Control of main content ≥99.0;
[Usage method] Dissolve in deionized water (distilled water), prepare a solution with a certain concentration and content, and then add it to the blood collection tube.
[Storage conditions] This product can be sealed and stored in a cool and dry place, protected from light and protected from moisture. The aqueous solution of this product can be sealed and stored at room temperature under aseptic conditions. It is recommended that the aqueous solution of this product be used immediately after preparation, and do not store it in a solution state for a long time.
[Validity period] 3 years
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