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间硝基甲苯标准溶液,99-08-1,analytical standard,1000ug/ml in methanol
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(La, Ce, Pr, Nd, Sm, Eu, Gd, Y) 多元素混合标准溶液(混标),100μg/ml
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3,5-二甲酚标准溶液,108-68-9,analytical standard,1000ug/ml in methanol
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三溴甲烷标准溶液,75-25-2,analytical standard, 0.93mg/ml in methanol
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硝酸根离子(NO₃-)标准溶液,500ug/ml in Water (20℃)
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硝酸根离子(NO₃-)标准溶液,100ug/ml in Water (20℃)
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硝酸盐氮标准溶液,100μg/ml in Water (20℃)
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乙苯标准溶液,100-41-4,analytical standard,1000ug/ml in methanol
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铯标准溶液,7440-46-2,100μg/ml,in 1% HCl
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(As, Cd, Cr, Pb, Hg) 多元素混合标准溶液(混标),As,Cd,Cr:100μg/ml;Pb,Hg:200μg/ml(,in :5% HNO3,2% HCL)
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