EDTA-2K NEW

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EDTA-K2·2H2O (Ethylenediaminetetraacetic acid dipotassium salt dihydrate) is a highly effective chemical anticoagulant widely used in medical and laboratory settings.

Structurally, it acts as a powerful chelating agent. Its primary mechanism involves binding to calcium ions (Ca²⁺) in the blood to form stable complexes. Since calcium is an essential co-factor for the blood clotting cascade, removing it effectively prevents the blood sample from coagulating.

Here are its primary uses and key selling points:

 Primary Uses

Complete Blood Count (CBC): It is the gold standard anticoagulant for routine hematology tests, including red blood cell, white blood cell, and platelet counts.

Glycated Hemoglobin (HbA1c) Testing: Used to assess average blood sugar levels over the past 2-3 months for diabetes monitoring.

Blood Typing & Cross-matching: Maintains the integrity of red blood cells for immunoserological analysis.

Molecular Biology: Frequently used in DNA extraction and PCR processes where preserving nucleic acid integrity is critical.

 Key Selling Points

Superior Cell Morphology Preservation: Unlike other anticoagulants (such as heparin or oxalates), EDTA-K2 has minimal impact on the shape and volume of blood cells. This makes it exceptionally reliable for microscopic examinations and automated cell analyzers.

Excellent Solubility & Rapid Action: Compared to its sodium counterpart (EDTA-Na2), the dipotassium salt has significantly higher solubility. This allows it to dissolve quickly and completely into the blood sample upon collection, ensuring immediate and uniform anticoagulation.

Dry Coating Compatibility: It is commonly applied as a spray-dried powder coating inside vacuum blood collection tubes. This dry format prevents sample dilution and osmotic interference, which guarantees highly precise cell analysis results.

Effective Platelet Protection: It effectively inhibits platelet aggregation, making it the preferred choice for accurate platelet counting.

In summary, EDTA-K2·2H2O is the industry-standard choice for hematology because it perfectly balances rapid anticoagulation with the exceptional preservation of blood cell structure.

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