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广西大学化学化工学院 广西生物炼制重点实验室,广西 南宁,530004
纸质出版日期:2017-4-5,
收稿日期:2016-10-27,
修回日期:2016-11-24,
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苏安梅, 钟青梅, 余姝轶等. 碳量子点荧光猝灭法测定饮料中日落黄[J]. 发光学报, 2017,38(4): 530-534
SU An-mei, ZHONG Qing-mei, YU Shu-yi etc. Fluorescence Quenching Method for Determination of Sunset Yellow in Drinks with Carbon Quantum Dots[J]. Chinese Journal of Luminescence, 2017,38(4): 530-534
苏安梅, 钟青梅, 余姝轶等. 碳量子点荧光猝灭法测定饮料中日落黄[J]. 发光学报, 2017,38(4): 530-534 DOI: 10.3788/fgxb20173804.0530.
SU An-mei, ZHONG Qing-mei, YU Shu-yi etc. Fluorescence Quenching Method for Determination of Sunset Yellow in Drinks with Carbon Quantum Dots[J]. Chinese Journal of Luminescence, 2017,38(4): 530-534 DOI: 10.3788/fgxb20173804.0530.
以柠檬酸为碳源制备碳量子点(CQDs)'所得碳量子点被394 nm的光激发后在484 nm处有较强的荧光发射'最大吸收波长为482 nm的日落黄能强烈猝灭碳量子点的荧光。基于该现象'发展了一种以碳量子点为荧光探针测定日落黄的分析方法'并探讨了荧光猝灭机理。在选定的实验条件下'该分析方法的线性检测范围为0.1~100 mol/L'检出限(3
/k
)为0.051 mol/L。
Water-soluble carbon quantum dots (CQDs) were prepared by using citric acid as carbon source. The obtained CQDs showed a strong emission at the wavelength of 484 nm
with an optimum excitation of 394 nm. Sunset yellow with maximum absorption wavelength at 482 nm could selectively quench the fluorescence of CQDs. Based on this principle
a fluorescent probe was developed for sunset yellow determination. Furthermore
the quenching mechanism of the CQDs was elucidated. A linear relationship was found in the range of 0.1-100 mol/L sunset yellow with the detection limit (3
/k
) of 0.051 mol/L. Satisfactory results were achieved when the method was submitted to the determination of sunset yellow in liquid samples.
碳量子点荧光猝灭日落黄
carbon quantum dotsfluorescence quenchingsunset yellow
LI Y, XUE F, WANG Y, et al.. Simultaneous determination of seven adulterants in functional foods by high-performance capillary electrophoresis[J]. Chin. J. Anal. Chem., 2011, 39(11):1716-1720.
XING Y, MENG M, XUE H Y, et al.. Development of a polyclonal antibody-based enzyme-linked immunosorbent assay (ELISA) for detection of Sunset Yellow FCF in food samples[J]. Talanta, 2012, 99:125-131.
EL-SHAHAWI M S, HAMZA A, AL-SIBAAI A A, et al.. A new method for analysis of sunset yellow in food samples based on cloud point extraction prior to spectrophotometric determination[J]. J. Ind. Eng. Chem, 2013, 19(2):529-535.
WANG J, YANG B B, WANG H W, et al.. Highly sensitive electrochemical determination of Sunset Yellow based on gold nanoparticles/graphene electrode[J]. Anal. Chim. Acta, 2015, 893:41-48.
刘宇, 谢志海, 蔡清, 等. 荧光光谱法测定饮料中的日落黄[J]. 分析科学学报, 2012, 28(4):535-538. LIU Y, XIE Z H, CAI Q, et al.. Determination of sunset yellow in beverage by fluorescence spectroscopy[J]. J. Anal. Sci., 2012, 28(4):535-538. (in Chinese)
YUAN Y S, ZHAO X, QIAO M, et al.. Determination of sunset yellow in soft drinks based on fluorescence quenching of carbon dots[J]. Spectrochim. Acta A:Mol. Biomol. Spectrosc., 2016, 167:106-110.
HAMISHEHKAR H, GHASEMZADEH B, NASERI A, et al.. Carbon dots preparation as a fluorescent sensing platform for highly efficient detection of Fe(Ⅲ) ions in biological systems[J]. Spectrochim. Acta A:Mol. Biomol. Spectrosc., 2015, 150:934-939.
ZHAO J J, ZHAO L M, LAN C Q, et al.. Graphene quantum dots as effective probes for label-free fluorescence detection of dopamine[J]. Sens. Actuator B:Chem., 2016, 223:246-251.
马红燕, 王艳妮. 石墨烯量子点荧光探针测定肾上腺色腙[J]. 发光学报, 2016, 37(2):230-236. MA H Y, WANG Y N. Detection of carbazochrome by graphene quantum dot fluorescence probe[J]. Chin. J. Lumin., 2016, 37(2):230-236. (in Chinese)
WANG G L, FANG X, WU X M, et al.. Label-free and ratiometric detection of nuclei acids based on graphene quantum dots utilizing cascade amplification by nicking endonuclease and catalytic G-quadruplex DNAzyme[J]. Biosens. Bioelectron., 2016, 81:214-220.
DONG Y Q, SHAO J W, CHEN C Q, et al.. Blue luminescent graphene quantum dots and graphene oxide prepared by tuning the carbonization degree of citric acid[J]. Carbon, 2012, 50(12):4738-4743.
LU L Q, ZHU Y C, SHI C, et al.. Large-scale synthesis of defect-selective graphene quantum dots by ultrasonic-assisted liquid-phase exfoliation[J]. Carbon, 2016, 109:373-383.
王柯敏, 王益林, 李朝辉, 等. CdTe量子点荧光猝灭法测定铜离子的研究[J]. 湖南大学学报(自然科学版), 2005, 32(3):1-5. WANG K M, WANG Y L, LI Z H, et al.. Studies on fluorescence quenching method for the determination of copper ions with CdTe quantum dots[J]. J. Hunan Univ. (Nat. Sci.), 2005, 32(3):1-5. (in Chinese)
POON C Y, LI Q H, ZHANG J L, et al.. FRET-based modified graphene quantum dots for direct trypsin quantification in urine[J]. Anal. Chim. Acta, 2016, 917:64-70.
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