| 混合表面活性剂-铬天青S与铜显色反应研究及应用 |
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| 引用本文： | 崔新宇,邓代千,靳革,李晓霞,杨凤华. 混合表面活性剂-铬天青S与铜显色反应研究及应用[J]. 光谱实验室, 2011, 28(5): 2428-2430 |
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| 作者姓名： | 崔新宇 邓代千 靳革 李晓霞 杨凤华 |
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| 作者单位： | 1. 牡丹江医学院公共卫生系 黑龙江省牡丹江市爱民区通乡街3号157011
2. 牡丹江医学院生物教研室 黑龙江省牡丹江市157011 |
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| 摘 要： | 在曲拉通X-100(TritonX-100)和乳化剂(OP)存在下,基于Cu2+-铬天青S(CAS)的显色反应,建立了分光光度法测定微量铜的新方法.通过Cu2+与CAS-Triton X-100-OP形成灵敏度较高的多元配合物,来测量铜含量.络合物的最大吸收波长为618nm,表观摩尔吸光系数为ε=6.62×105L·m...
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| 关 键 词： | 铜(Ⅱ) 铬天青S 曲拉通X-100 乳化剂 分光光度法 |
Research and Application of Color Reaction of Mixed Surfactant-CAS and Copper |
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| CUI Xin-Yu,DENG Dai-Qian,JIN Ge,LI Xiao-Xia,YANG Feng-Hua. Research and Application of Color Reaction of Mixed Surfactant-CAS and Copper[J]. Chinese Journal of Spectroscopy Laboratory, 2011, 28(5): 2428-2430 |
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| Authors: | CUI Xin-Yu DENG Dai-Qian JIN Ge LI Xiao-Xia YANG Feng-Hua |
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| Affiliation: | CUI Xin-Yu DENG Dai-Qiana JIN Ge LI Xiao-Xia YANG Feng-Hua(Department of Public Health,Mudanjiang Medical College,Mudanjiang,Heilongjiang 157011,P.R.China)a(Department of Biology,P.R.China) |
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| Abstract: | Based on the color reaction of Cu2＋ and CAS in the presence of Triton X100 and OP,the method for determination of trace copper by spectrophotometry was developed.Cu2＋ and CAS-TritonX-100-OP formed polybasic complexes with higher sensitivity to measure the content of copper.The maximal absorption wavelength of the complex was at 618nm with apparent molar absorptivity of 6.62×105L·mol-1·cm-1.The content of Cu2＋ obey Beer law in range of 0—20μg/25mL.The regression equation was A=0.039ρ＋0.0078 with r=0.9993.There was less interfering ion.The method is applied to the determination of trace copper in mung with satisfactory results. |
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| Keywords: | Copper（Ⅱ） CAS Triton X-100 OP Spectrophotometry |
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