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忻州师范学院 化学系,山西 忻州,034000
纸质出版日期:2016-4-5,
收稿日期:2015-12-11,
修回日期:2016-1-20,
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李满秀, 张强, 赵三虎等. 基于CdTe量子点荧光猝灭-恢复方法测定依诺沙星的研究[J]. 发光学报, 2016,37(4): 467-472
LI Man-xiu, ZHANG Qiang, ZHAO San-hu etc. Enoxacin Detection Based on CdTe Quantum-dot-based OFF-ON Fluorescent Probe[J]. Chinese Journal of Luminescence, 2016,37(4): 467-472
李满秀, 张强, 赵三虎等. 基于CdTe量子点荧光猝灭-恢复方法测定依诺沙星的研究[J]. 发光学报, 2016,37(4): 467-472 DOI: 10.3788/fgxb20163704.0467.
LI Man-xiu, ZHANG Qiang, ZHAO San-hu etc. Enoxacin Detection Based on CdTe Quantum-dot-based OFF-ON Fluorescent Probe[J]. Chinese Journal of Luminescence, 2016,37(4): 467-472 DOI: 10.3788/fgxb20163704.0467.
水相合成了巯基丙酸保护的CdTe量子点。根据在Cu
2+
存在的情况下
CdTe 量子点荧光恢复程度与依诺沙星浓度成正比的现象
建立了基于CdTe量子点荧光猝灭-恢复测定依诺沙星的新方法。考察了溶液pH 值以及Cu
2+
浓度等对检测体系的影响。在pH=10的硼砂缓冲溶液中
在Cu
2+
浓度为 2.310
-5
mol/L的条件下
依诺沙星浓度在8.010
-7
~3.010
-5
mol/L范围内与量子点荧光恢复程度呈良好的线性关系
检出限为7.210
-8
mol/L。该方法用于实际样品中依诺沙星的检测
回收率为95.5%~105.0%。
A new type of water-soluble CdTe quantum dot was synthesized by using mercapto propionic acid as the capping ligand for the detection of enoxacin. The fluorescence intensity of CdTe QDs was significantly quenched in the presence of Cu
2+
. In the presence of enoxacin
the fluorescence of CdTe QDs was recovered because Cu
2+
preferred to react with enoxacin. The degree of recovery of CdTe QDs fluorescence intensity was proportional to the enoxacin concentration
which provided a new method for the detection of enoxacin based on the fluorescence quenching-recovery properties of CdTe QDs. In the presence of 2.310
-5
mol/L Cu
2+
in pH=10 borax buffer solution
the recovered fluorescence of CdTe QDs was linearly related with the enoxacin concentration in the range of 8.010
-7
-3.010
-5
mol/L with a detection limit of 7.210
-8
mol/L. This method has been successfully applied for the detection of enoxacin in real samples
and the accuracy is within 95.5%-105.0%.
CdTe量子点Cu2+依诺沙星荧光猝灭-恢复
CdTe quantum dotsenoxacinCu2+ ionfluorescence quenching-recovery
初丛波,单玉萍,王宏达. 量子点在生物检测中的应用 [J]. 应用化学, 2014, 31(4):377-388. CHU C B, SHAN Y P, WANG H D. Application of quantum dots in biological detection [J]. Chin. J. Appl. Chem., 2014, 31(4):377-388. (in Chinese)
杜保安,刘澄,曹雨虹,等. CdTe量子点作荧光探针检测微量铅的方法研究 [J]. 光谱学与光谱分析, 2013, 33(5):1266-1269. DU B A, LIU C, CAO Y H, et al.. Study of CdTe quantum dots as fluorescence probe to detect trace amount of Pb2+ [J]. Spectro. Spect. Anal., 2013, 33(5):1266-1269. (in Chinese)
元晓云,王天伦,关婷婷,等. 以CdTe量子点为荧光探针测定黄瓜中链霉素的残留量 [J]. 分析测试学报, 2015, 34(4):463-467. YUAN X Y, WANG T L, GUAN T T, et al.. Determination of streptomycin residue in cucumber by using CdTe quantum dots as fluorescence probes [J]. J. Instrum. Anal., 2015, 34(4):463-467. (in Chinese)
徐琴,魏焕平,胡效亚. 基于ZnS量子点荧光淬灭-恢复方法测定还原型谷胱甘肽 [J]. 分析化学, 2013, 41(7): 1102-1106 XU Q, WEI H P, HU X Y. Glutathione detection based on ZnS quantum-dot-based off-on fluorescent probe [J]. Chin. J. Anal. Chem., 2013, 41(7):1102-1106. (in Chinese)
付丽娟,陈蓉. 依诺沙星有关物质测定方法的完善 [J]. 中国药品标准, 2010, 11(4):282-287. FU L J, CHEN R. Optimazation of related substances test method for Enoxacin [J]. Drug Stand. China, 2010, 11(4):282-287. (in Chinese)
祝子铜,徐佳文,雷美康,等. HPLC-MS-MS同位素内标法测定火腿中14种喹诺酮类残留量 [J]. 食品科学, 2014, 35(20):258-264. ZHU Z T, XU J W, LEI M K, et al.. Determination of 14 quinolone residues in ham by HPLC-MS-MS with isotopic internal standard [J]. Food Sci., 2014, 35(20):258-264. (in Chinese)
甘婷婷,张玉钧,肖雪,等. 以巯基丙酸为稳定剂的水溶性CdTe量子点的水热合成及表征 [J]. 发光学报, 2012, 33(12):1309-1314. GAN T T, ZHANG Y J, XIAO X, et al.. Hydrothermal synthesis and characterization of mercaptopropionic acid modified water-soluble CdTe quantum dots [J]. Chin. J. Lumin., 2012, 33(12):1309-1314. (in Chinese)
黎舒怀,陶慧林,徐铭泽,等. 新型量子点"开关"测定痕量诺氟沙星 [J]. 分析化学, 2012, 40(9):1450-1453. LI S H, TAO H L, XU M Z, et al.. A new type CdTe quantum dots "Switch" and its application in determination of norfloxacin [J]. Chin. J. Anal. Chem., 2012, 40(9):1450-1453. (in Chinese)
李满秀,邸会霞,张媛,等. 基于CdTe量子点荧光猝灭-恢复方法测定磷酸根 [J]. 化学研究与应用, 2015, 27(3):335-338. LI M X, DI H X, ZHANG Y, et al.. Phosphate detection based on CdTe quantum-dot-based off-on fluorescent probe [J]. Chem. Res. Appl., 2015, 27(3):335-338. (in Chinese)
韩甜甜,凌晶,代小丽,等. 重金属离子与依诺沙星相互作用的荧光光谱法研究 [J]. 环境科学与技术, 2012, 35(4):117-119. HAN T T, LING J, DAI X L, et al.. Interactions between heavy metal ions and enoxacin by fluorescence spectroscopy [J]. Environ. Sci. Tech., 2012, 35(4):117-119. (in Chinese)
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