Order as you go, you can customize the concentration and specifications according to customer requirements, and the shipping time is 2-3 days.Impurity standard solution is used to detect the impurity content in chemical reagents and products, with certain accuracy in concentration. But it cannot be used as a standard substance for atomic absorption spectroscopy, ion chromatography, plasma spectroscopy, gas chromatography, etc., nor can it be used for the determination of chemical reagents and chemical product content.
This type of solution has a shelf life of generally 2 months at room temperature (15-25 ℃). When there is turbidity, precipitation, or color change, it should be prepared again.