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First Standard® 乙腈中四螨嗪溶液,100μg/mL
Clofentezine Solution in Acetonitrile, 100μg/mLFirst Standard®天津
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Clofentezine Solution in Methanol
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锂标准溶液,7439-93-2,100mg/L in 1%HCl
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硒标准溶液,7782-49-2,100mg/L in 1%HCl
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钒标准溶液,7440-62-2,100mg/L in 1%HCl
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N,N',N'',N''',N'''-Pentacetyl chitopentaose
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δ-六六六标准溶液,319-86-8,100mg/L,基体:异辛烷
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三硫磷标准溶液,786-19-6,100mg/L in acetone
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铟标准溶液,7440-74-6,100mg/L (20℃) in 1%HCl
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N,N,N",N"-四甲基胍 for synthesis
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