-
水硬度标准溶液,45.0mmol/l(以CaCO3计),in 0.1mol/L HCl
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(La,Ce,Pr,Nd,Sm,Y)多元素混合标准溶液(混标),100μg/ml
-
镨标准溶液,7440-10-0,1000ug/ml in 10%HCl
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水中铵离子成分分析标准物质,1000μg/ml ±1% (20℃)
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硝酸根离子(NO₃-)标准溶液,1000μg/ml in Water (20℃)
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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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水中氯离子成分分析标准物质,1000μg/ml ±1% (20℃)
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锌标准溶液,7440-66-6,100ug/ml Zn in 1%HNO3
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镁标准溶液,7439-95-4,1000ug/ml in 5%HCl
-
β-硫丹标准溶液,33213-65-9,1000ug/ml in Purge and Trap Methanol
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