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Caffeine @ 1,000 ug/mL in Water EPA 州标准品
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硼标准溶液,7440-42-8,analytical standard,100ug/ml in water
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砷标准溶液,7440-38-2,analytical standard, 100ug/ml in 1%HNO3
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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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p, p’-DDE标准溶液,72-55-9,analytical standard,100ug/ml in methanol
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四螨嗪标准溶液,74115-24-5,analytical standard,100ug/ml in actone
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氰戊菊酯标准溶液,51630-58-1,analytical standard,100ug/ml in petroleum ether
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石油类四氯乙烯(34.6ug/ml)标准品 BQC2910180350B
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石油类四氯乙烯(34.6ug/ml)标准品 BQC2910180350H
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石油类四氯乙烯(34.6ug/ml)标准品 BQC2910180350L
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