Do you know all this knowledge about potassium oxalate?

Potassium oxalate is a strong dicarboxylic acid, colorless. It is a white crystal or powder formed by the reaction of oxalic acid and potassium carbonate. It is soluble in water at a ratio of 1:3, but insoluble in alcohol, with a density of 2.13 g cm -3. Among the blood collection tube additives, in addition to the anticoagulants of heparin series and EDTA series, there is another product that can be used as anticoagulant, that is potassium oxalate. However, there are still many people who do not know the specific knowledge of potassium oxalate as an anticoagulant. Below, let us introduce it to you in detail.

The role of potassium oxalate

As an anticoagulant in blood collection tubes, potassium oxalate is mainly used in the medical field. Potassium oxalate reduces the concentration in plasma and increases the percentage of lipids in red blood cells. And potassium oxalate will precipitate with Ca2+ in the blood, preventing blood coagulation, using 10-20㎎ potassium oxalate can anti-coagulate 10ml blood.

How to use potassium oxalate

Generally, take 5% potassium oxalate solution, equivalent to 0.2ml, put it in a test tube, dry it in an oven with an ambient temperature below 100°C, and leave the powder at the bottom of the tube. This tube can be used for 5ml blood collection. Another method is direct solution anti-coagulation, using 20% ??potassium oxalate solution, drop 1 drop into the tube, without drying, can anti-coagulate 5 ml of blood.

However, it should be noted that the finished potassium oxalate solution is troublesome in the process of storage and transportation, and is easily disturbed by external factors, while the potassium oxalate produced by Desheng is in powder form, which is convenient for transportation and storage.

In addition, the dosage of potassium oxalate is 1ml of blood, and the amount of potassium oxalate used should not exceed 3mg. Too much dosage may hinder the preparation of protein-free blood filtrate, and blood samples of potassium oxalate anticoagulant are not suitable for potassium and calcium. measurement. If 3mg of ammonium oxalate and 2㎎ of potassium oxalate are prepared as an anticoagulant, 2.5㎎ of blood can be anti-coagulated, and this type of anticoagulant will not change the volume of red blood cells. It is suitable for the determination of hematocrit, but it is not suitable for the determination of NPN, urea nitrogen, potassium and calcium in blood.

Hubei New Desheng is a manufacturer specializing in the production of potassium oxalate. It has been developing for more than 10 years. It has very rich experience and has a professional team to test and control the quality. Today, the potassium oxalate series products produced have been exported to many countries to meet your different needs. At the same time, the company has a variety of other chemical reagents for you to choose from. If you have needs in this regard, please click on the official website or inquire!