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First Standard® 甲醇中棉隆溶液,1000ug/ml
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First Standard® 甲醇中杆菌肽溶液,1000ug/ml
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(±)-α-红没药醇,515-69-5,90%
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化合物 Tetraethylene glycol monooctyl ether T65456
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铒标准溶液,1000ug/ml in 1.0 mol/L HNO3
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硅酸根标准溶液,1000ug/ml in 0.05mol/L NaOH
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三唑酮标准溶液,43121-43-3,100ug/ml in Petroleum ether
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汞单元素标准溶液,1000ug/mL,in 3%HNO3
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银单元素标准溶液,1000ug/mL in:1%HNO3
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α-六六六标准溶液,319-84-6,1000ug/ml in Purge and Trap Methanol
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