Medical
EDTA ACID DIPOTASSIUM SALT DIHYDRATE CAS NO.25102-12-9 |
No. |
Project |
Specifications |
1 |
Content (%)≥ |
99 |
2 |
PH (50g/L,25°C) |
4.8±1 |
3 |
Clarity test |
Qualified |
4 |
Solubility (%)≥ |
60 |
5 |
Chloride (cl)≤ |
0.005 |
6 |
Sulfate (SO4)≤ |
0.02 |
7 |
Iron (Fe)≤ |
0.001 |
8 |
Heavy metal (calculated as Pb)≤ |
0.001 |
Note: ”%” in the table refers to mass fraction. |
Cautions of EDTA Dipotassium Salt Dihydrate(CAS 25102-12-9)
In the whole blood sample collection test, the key step of preparation is that the blood should be fully contacted with EDTA dipotassium salt to achieve full anticoagulation. Therefore, it is necessary to gently reverse 5~8 times as soon as possible after blood collection to prevent the formation of tiny blood clots.
Although EDTA dipotassium salt is an anticoagulant, this kind of anticoagulation is non-reversible and the blood will still coagulate within a certain period of time, and the blood should be tested within 24 hours after anticoagulation with dipotassium salt, otherwise, the test results may be incorrect.
The preservation time of EDTA dipotassium anticoagulant samples was 48 hours at 4°C and less than 24 hours at 23°C, and 24 hours at 4°C.
Anticoagulation requires a sufficient amount of EDTA, but excessive EDTA may cause morphological changes in blood cells, and accurate control of EDTA dipotassium salt dihydrate is particularly important.
EDTA dipotassium salt dihydrate inhibits platelet aggregation, but does not completely prevent platelet aggregation.
EDTA dipotassium salt dihydrate can be used in combination with various blood sampling additives, such as sodium fluoride, serum separation gel, etc., and the effect will be different with the use of different additives. For example, when EDTA dipotassium salt add sodium fluoride is used in the blood glucose test, adding 1.2-2.0mg dipotassium to each ml of blood, and 2-4mg sodium fluoride, while EDTA dipotassium+serum separation gel can be used in the nucleic acid test tube.
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