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  • 产品名称:沉积物(砂质壤土)中金属
  • 产品编号:RTC-CRM016
  • 产品规格:50g
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Sediment from a stream located in the Western United States. The following certified values were determined by USEPA SW846 (3rd edition) Methods 3050 and 6010, except for arsenic (7060A), mercury (7471A), selenium (7740), and thallium (7841). The sample i
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