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三種酚類化合物的三維熒光光譜特性研究
摘要：三維熒光光譜技術(shù)通過在不同激發(fā)波長下掃描發(fā)射光譜獲得熒光強度變化信息,由于其靈敏度高,選擇性好,被廣泛用于環(huán)境中污染物的監(jiān)測.利用該方法研究3種酚類化合物的熒光光譜特性,在激發(fā)波長為240～360 nm,發(fā)射波長為260～500 nm范圍內(nèi),確定了苯酚、間甲酚和麝香草酚的熒光峰位置分別為272/300,274/300和276/304 nm.由于3種酚類物質(zhì)為同系物,結(jié)構(gòu)相似,因此得到的激發(fā)光譜和發(fā)射光譜在形狀上極為相似.工作液濃度在0.02～1.0 mg·L-1范圍內(nèi),3種酚類物質(zhì)的濃度與熒光強度之間均呈現(xiàn)較好的線性關系,且檢出限達到1 μg·L-1.實驗結(jié)果表明,用三維熒光光譜法町對3種酚類化合物進行定性和定量分析.Abstract：The fluorescence intensity information was collected by scanning its fluorescence spectra at different excitation wavelengths.Based on its high sensitivity and selectivity,excitation-emission fluorescence can be widely used for detection of pollutants in the environment.The characterizations of the three phenolic compounds were investigated by this method,and the fluorescence peaks of phenol,m-cresol and thymol were confirmed at 272/300 nm,274/300 nm and 276/304 nm when the excitation and emission wavelength were set in the range of 240-360 nm and 260-500 nm respectively.The excitation and emission spectra of the three phenolic compounds are very similar because of their analogical structure.The intensity of the spectrum has a good linear relationship with the concentration when the solution concentration is between 0.02 and 1.0 mg·L-1,and the limits of detection can reach at 1 μg·L-1.Results show that the three compounds can be analyzed qualitatively and quantitatively by excitation-emission fluorescence. 作者： 王歡博張玉鈞肖雪金丹趙南京殷高方郭立泉劉文清 Author： WANG Huan-bo ZHANG Yu-jun XIAO Xue JIN Dan ZHAO Nan-jing YIN Gao-fang GUO Li-quan LIU Wen-qing 作者單位： 中國科學院安徽光學精密機械研究所,中國科學院環(huán)境光學與技術(shù)重點實驗室,安徽,合肥,230031 期 刊： 光譜學與光譜分析 ISTICEISCIPKU Journal： SPECTROSCOPY AND SPECTRAL ANALYSIS 年，卷(期)： 2010, 30(5) 分類號： X830.2 關鍵詞： 苯酚 間甲酚 麝香草酚 三維熒光光譜 熒光特性 Keywords： Phenol m-cresol Thymol Excitation-emission fluorescence Fluorescence characterization 機標分類號： O65 X83 機標關鍵詞： 酚類化合物 三維熒光光譜法 特性研究 Phenolic Compounds Three Study Characterization fluorescence intensity phenolic compounds fluorescence spectra linear relationship detection 熒光強度 激發(fā)波長 酚類物質(zhì) 發(fā)射光譜 high sensitivity emission spectra three 定性和定量分析 基金項目： 國家(863計劃)項目【三種酚類化合物的三維熒光光譜特性研究】相關文章：
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