本标准规定了工业废液处理污泥中铜、镍、铅、锌、镉、铬等26种元素含量测定方法的术语和定义、一般规定、样品制备及电感耦合等离子体原子发射光谱法和氢化物发生原子荧光光谱法两种检测方法。
本标准适用于工业废液处理污泥中银(Ag)、铝(Al)、砷(As)、金(Au)、钡(Ba)、铍(Be)、铋(Bi)、钙(Ca)、镉(Cd)、钴(Co)、铬(Cr)、铜(Cu)、铁(Fe)、汞(Hg)、锰(Mn)、钼(Mo)、镍(Ni)、钯(Pd)、铅(Pb)、锑(Sb)、硒(Se)、锡(Sn)、锶(Sr)、钛(Ti)、钒(V)、锌(Zn)共26种元素含量的测定。
[JP2]电感耦合等离子体原子发射光谱法在试样溶液不经稀释的情况下,新鲜污泥样品适宜的测定浓度范围为5 mg/kg~10 000 mg/kg;风干或烘干污泥样品适宜的测定浓度范围为50 mg/kg~100 000 mg/kg。电感耦合等离子体原子发射光谱法各元素的检出限见附录A。
氢化物发生原子荧光光谱法测定汞的检出限为0.004 mg/kg,适宜的测定浓度范围为0.016 mg/kg~5 mg/kg;测定砷、硒、锑、铋的检出限为0.020 mg/kg,适宜的测定浓度范围为0.080 mg/kg~50 mg/kg。
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This document specifies methods of the determination of divalent copper ions (Cu2+),divalent manganese ions (Mn2+),and hexavalent chromium ions [Cr(Ⅵ)] in aqueous solution using an ultraviolet-visible spectrophotometer.
This document is applicable for the determination of divalent copper ions (Cu2+),divalent manganese ions (Mn2+) and hexavalent chromium ions [Cr(Ⅵ)] in aqueous solution. The soil,food or biological samples can also be measured according to this document after proper treatment.
The detection limits of each ion in aqueous solution to be applied to this document are as follows:the content of Cu2+ is not less than 1.00×10-7 mol/L,the content of Mn2+ is not less than 1.00×10-6 mol/L,and the content of Cr(Ⅵ) is not less than 4.00×10-7 mol/L.
The pH ranges of water samples to be applied to this document are as follows:the pH range of aqueous solutions containing Cu2+ is 2-6,the pH range of aqueous solutions containing Mn2+ is 3-7,and the pH range of aqueous s
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