1µg = 1/1000 mgug是浓度单位，具体换算单位如下：1、1µg = 1/1000 mg = 1/1000,000 g2、µg/g = (1/1000) mg/(1/1000)kg = mg/kg3、1µg/g = (1/1000,000)g/g = 1/1000,000 = 1 ppm
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2024-01-22 17:14
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