1.It is usually first wash by clear water and drying, then immersed by potassium bichromate sulfate.
2.The washing method of chromatographic sample bottles is the same as that of liquid phase. First, with medical alcohol soaked for more than 4 hours, and then ultrasound is conducted for half an hour. Then, pour out the medical alcohol, Use water ultrasound for half an hour, rinse with water and dry.
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