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δ-六六六标准溶液,319-86-8,analytical standard,100ug/ml in petroleum ether
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除虫脲标准溶液,35367-38-5,100ug/ml,u=2%,in acetone
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气相色谱仪检定用标准物质(苯-甲苯溶液),71-43-2,analytical standard,5.00mg/ml in toluene,for GC calibration
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氨水溶液,1336-21-6,Ammonium Hydroxide Solution, 10% (w/v) NH₃
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100ug/ml标准品
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苯并(a)芘标准溶液,50-32-8,2000μg/ml in Toluene
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苯并(b)荧蒽标准溶液,205-99-2,2000μg/ml in Toluene
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一氯二乙基铝,96-10-6,1.0M solution in toluene
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β-六六六标准溶液,319-85-7,analytical standard,100ug/ml in methanol
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硼标准溶液,7440-42-8,analytical standard,100ug/ml in water
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