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1000μg/ml标准品 BePure-33212YC
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2000μg/ml标准品 BePure-30499YW
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1000μg/ml标准品 BePure-33213YA
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3,4,4',5-四氯联苯,70362-50-4,100 ug/mL in Isooctane
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2,4,4′-三氯联苯,7012-37-5,10 μg/mL in isooctane, analytical standar
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对二氯苯标准溶液,106-46-7,analytical standard,0.102mg/ml in isooctane
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氨氮 水质标液标准品 BW80100MW-50mL-ON
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NCSZ-TP-50μg/mL 标样/水质总磷TP质控样50μg/mL
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(K,Na) multi-element mixed standard solution (mixed standard),100μg/ml,in water
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艾杰尔CleanertQuechers2g/50mL, 50/Pk
50ml MCPD tube艾杰尔天津艾杰尔QuechersCleanertQuechers50ml MCPD tube2g/50mL, 50/Pk
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