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辛硫磷标准溶液,14816-18-3,analytical standard,100ug/ml in petroleum ether
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铬标准溶液,7440-47-3,analytical standard,100ug/ml in water
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First Standard® 甲醇中4-氯苯氧乙酸钠溶液,100ug/ml
Sodium 4-chlorophenoxyacetate solution in Methanol, 100ug/mlFirst Standard®天津
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灭幼脲标准溶液,57160-47-1,analytical standard,100ug/ml in actone
-
alpha-六六六标准溶液,319-84-6,analytical standard,100ug/ml in petroleum ether
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外环氧七氯标准溶液,1024-57-3,analytical standard,100ug/ml in Petroleum ether
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外环氧七氯标准溶液,1024-57-3,analytical standard,100ug/ml in Petroleum ether
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残杀威标准溶液,114-26-1,analytical standard,100ug/ml in acetone
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镁离子标准溶液,1000 μg/ml in 5%HCL
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p, p’-DDE标准溶液,72-55-9,analytical standard,100ug/ml in petroleum ether
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