| 茜素应用于识别硼酸的研究 |
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| 引用本文： | 周炳江,朱红华,方克鸣,吴小华.茜素应用于识别硼酸的研究[J].光谱实验室,2011,28(2):922-926. |
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| 作者姓名： | 周炳江 朱红华 方克鸣 吴小华 |
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| 作者单位： | 浙江师范大学化学与生命科学学院,浙江省金华市迎宾大道688号,321004 |
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| 摘 要： | 应用紫外-可见分光光度法研究了茜素与硼酸之间的识别行为,结果表明,在pH 9.0Na2HPO4-NaH2PO4缓冲介质中,茜素与硼酸形成1∶1稳定络合物,使茜素的吸收光谱发生明显蓝移,溶液颜色由玫红色变为橙黄色,阴离子F-、Cl-、Br-、I-、Ac-、NO-3、C2O24-等均未引起茜素的吸收光谱及溶液颜色发生明显变化,因此茜素可以选择性识别硼酸。初步探讨了茜素与硼酸之间的相互作用机理,并对茜素识别硼酸与茜素识别阴离子的机理进行了比较。
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| 关 键 词： | 紫外-可见分光光度法 硼酸 茜素 识别 |
Recognition of Boric Acid by Alizarin |
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| ZHOU Bing-Jiang,ZHU Hong-Hua,FANG Ke-Ming,WU Xiao-Hua.Recognition of Boric Acid by Alizarin[J].Chinese Journal of Spectroscopy Laboratory,2011,28(2):922-926. |
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| Authors: | ZHOU Bing-Jiang ZHU Hong-Hua FANG Ke-Ming WU Xiao-Hua |
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| Institution: | ZHOU Bing-Jiang ZHU Hong-Hua FANG Ke-Ming WU Xiao-Hua(College of Chemistry and Life Science,Zhejiang Normal Uninversity,Jinhua,Zhejiang 321004,P.R.China) |
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| Abstract: | Recognition of boric acid by alizarin was studied by UV-Vis spectrophotometry.The alizarin could form a complex with boric acid at Na2HPO4-NaH2PO4 buffer solution with pH of 9.0.The process induced an obvious blue shift,and the color of the solution turned from rose to orange,yet the addition of anions,such as F-,Cl-,Br-,I-,Ac-,NO-3 and C2O2-4,almost did not course obvious changes for adsorption of alizarin and colour of solution,and alizarin can recognize boric acid.The mechanism of recognizing boric acid ... |
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| Keywords: | UV-Vis Spectrophotometry Boric Acid Alizarin Recognition |
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