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总氮标准溶液,analytical standard,1000μg/ml in water
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铅标准溶液,7439-92-1,1.00μg/g,in :K+ 2.2mg/L,Na+ 23mg/L,Ca2+ 39mg/L,Mg2+11mg/L,0.5mol/L HNO3
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螺旋藻中的铅(Pb) BQC1368239582
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圆白菜粉中的铅(Pb) BQC1351339582
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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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(As,Cd,Cr,Pb,Hg)多元素混合标准溶液(混标)
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R PB PM* 铅控样
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硝酸根离子(NO₃-)标准溶液,1000μg/ml in Water (20℃)
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氯离子(Cl-)标准溶液,1000μg/ml in Water (20℃)
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R Pb 11* 高纯铅
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