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L-丁硫氨酸-亚砜亚胺
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锰标准溶液,7439-96-5,analytical standard ,1000ug/ml in 1.0 mol/L HNO3
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钡标准溶液,7440-39-3,analytical standard,1000ug/ml in 1.0 mol/L HNO3
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硫线磷标准溶液,95465-99-9,analytical standard,100mg/L in acetone
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硫丹硫酸酯标准溶液,1031-07-8,100mg/L于甲苯:己烷 1:1
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(Al、As、Ba、Be、Bi、Cd、Co、Cr、Cu、Fe、Mg、Mn、Ni、Sb、Sn、Ti、V、Zn、Zr)多元素混合标准溶液(混合标准),100μg/ml,in 2.5mol/L HCL
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钙标准溶液,7440-70-2,analytical standard,500mg/L in 1%HCl
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铷标准溶液,7440-17-7,analytical standard,1000μg/ml, in 1mol/L HNO3
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钾标准溶液,7440-09-7,500mg/L in water
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五日生化需氧量(耗氧量)(BOD5)成分分析标准物质,1000mg/L in water
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