As more and more trace analysis experiments need to determine the concentration of ppb and ppt level. The general materials currently used will inevitably react with the stored samples, reagents or standard solutions due to no special treatment, resulting in incorrect results in trace analysis experiments. But the PFA products of our factory can just make up for its deficiency. The blank value of PFA metal elements is low, the content of lead and uranium is less than 0.01ppb, there is no dissolution and precipitation, and no regrind is added. It not only has good resistance to temperature and various chemical agents, but also has a smooth inner wall for easy cleaning.

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