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二丁基錫(DBT) Dibutyltin-dichloride*250mg
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二庚基錫 Di-n-heptyltin dichloride*100mg
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12種亞硝基胺混標(biāo) Nitrosamines-Mix12 10μg/ml in Methanol*1mL
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12種亞硝基胺混標(biāo) Nitrosamines-Mix12 200μg/ml in Methanol*1mL
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12種亞硝基胺混標(biāo) Nitrosamines Mix-12 100μg/ml in Methanol*1mL
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3種內(nèi)標(biāo)混標(biāo) Mix-3 4000ug/ml in Dichloromethane*1mL
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6種消毒劑混標(biāo) Mix-6 100ug/ml in Methanol/ Water*1mL
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PCB Mix-7 (28/52/101/118/138/153/180)100ug/ml in Isooctane*1mL
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8種有機(jī)錫混標(biāo) Mix-8 100ug/mL in Methanol*1ml