-
水质硒标样,7782-49-2,12.1±1.1μg/L
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水质钠标样,7440-23-5,1.50mg/L,in water
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水质硝酸盐标样,0.421-3.32mg/L in water
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锰 标样标准品 BW81350DW-20mL
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水质汞标样,7439-97-6,浓度范围:11.2µg/L
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水质钒标样
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水质锶标样,7440-24-6,analytical standard,0.80 mg/L,in 1%HCl
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水质亚硝酸盐标样,0.15mg/L,in water
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水质汞标样,7439-97-6,浓度范围:3.7µg/L
-
水质生化需氧量标样,61.8-148mg/L in water(稀释后)
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