How can we judge the quality of dipotassium edetate? Many people buy a product now, they have to check what material it is made of and whether its quality is good or not. Not to mention the dipotassium edetate used for blood anticoagulation, its quality requirements are more stringent, and many people will pay special attention to its appearance and key indicators, so let me introduce ethylenediamine in detail below What indicators can be used to check the quality of dipotassium tetraacetate.
1. Purity content
The purity of dipotassium EDTA determines whether it contains impurities. The more impurities, the more unfavorable it is for experimental detection. Usually, the purity of dipotassium EDTA is above 99%. If it is lower than 99%, its quality needs to be considered There may be problems. The dipotassium EDTA produced by Desheng is a dihydrate with a purity of 99.5%.
2. PH value
The pH value of dipotassium EDTA produced by Desheng is 4.8 ± 1 (5% aqueous solution, g/ml). The pH value plays an important role in stabilizing the performance of dipotassium EDTA. If the pH value is Alterations in selection and control have a direct impact on test results.
3. Compatibility of Dipotassium EDTA with other blood collection tube additives
Different blood collection tubes have different testing items, and their requirements are also different, and this requires that dipotassium edetate can work well with other additives in blood collection tubes, such as being placed together with serum separating gel In the nucleic acid detection test tube, it is required that the two cannot react, remain stable, and play their respective roles.
The solubility of dipotassium edetate is a key indicator. Since the appearance of the produced product is mostly white crystalline powder, it exists in the form of water mist when placed in blood collection tubes. If its solubility is not good , or the dissolution is very slow, which will inevitably affect the entire detection process. The dipotassium produced by Desheng is dissolved in 100 ml of pure water at room temperature (25±5°C), stirred for 5-10 minutes, and then dissolved.
5. Storage time of dipotassium ethylenediaminetetraacetic acid
The validity period of dipotassium ethylenediaminetetraacetic acid is generally determined according to the manufacturer. The indicators of each manufacturer are different, and its shelf life is 1 year, 2 years or 3 years. The ability to guarantee the original properties of the blood sample shows that the performance and quality of dipotassium is relatively good.
Desheng Biochemical has been committed to the development of blood collection tube additives for many years. Now the series of products produced include serum separation gel, heparin sodium, heparin lithium, EDTA dipotassium, tripotassium, disodium, etc., and customers have repurchased them for a long time, proving its The product quality is excellent, and the key indicators are up to standard, even more accurate. If you have a demand for dipotassium edetate, please click the website for consultation!
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