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丙酮中敌敌畏标准溶液 1ml (1000ug/ml)
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丙酮中敌敌畏溶液 广电计量
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亚硝酸盐标准溶液,1000ug/ml in water
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硅酸根标准溶液,1000ug/ml in 0.05mol/L NaOH
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铽标准溶液,7440-27-9,1000ug/ml in 10%HCl
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钆标准溶液,7440-54-2,1000ug/ml in 10% HCl
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硝酸盐氮标准溶液,1000ug/ml in Water (20℃)
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苯酚标准溶液,1000ug/ml in 0.02mol/L NaOH
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钪标准溶液,7440-20-2,1000ug/ml in 10%HCl
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First Standard® 丙酮中敌菌灵溶液,1000ug/ml
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