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氯离子(Cl-)标准溶液,1000μg/ml in Water (20℃)
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铜标准溶液,7758-98-7,analytical standard,1000ug/ml in 1% H2SO4
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亚硝酸盐标准溶液(以氮计)
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甲基汞标准溶液,22967-92-6,analytical standard,10ug/ml in toluene
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(La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Y,Sc)多元素混合标准溶液(混标)
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氨氮标准溶液,1000μg/ml in Water (20℃)
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锶标准溶液,7440-24-6,analytical standard,1000ug/ml in 1.0 mol/L HNO3
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总氮标准溶液,analytical standard,1000μg/ml in water
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钒标准溶液,7440-62-2,500mg/L,in 1%HNO3
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水中氯离子成分分析标准物质,500μg/ml ±1% (20℃)
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