共 55 条
Construction of coumarin-appended calix[4]arene-based fluorescence sensor for the detection of carbofuran in cabbage
被引:0
作者:
Soni, Heni
[1
]
Verma, Nidhi
[2
]
Chaudhari, Divyesh Y.
[3
]
Gandhi, Sahaj A.
[3
]
Pandya, Alok
[2
]
Sutariya, Pinkesh G.
[1
]
机构:
[1] Sardar Patel Univ, Dept Chem, VV Nagar 388120, Gujarat, India
[2] Inst Adv Res, Dept Biotechnol & Bioengn, Gandhinagar 382426, Gujarat, India
[3] Bhavans Shri Ishvarbhai L Pandya Arts Sc & Jashoda, Dakor 388225, Gujarat, India
关键词:
PERFORMANCE LIQUID-CHROMATOGRAPHY;
PESTICIDE-RESIDUES;
IMMUNOSENSOR;
RECOGNITION;
PROBE;
3-HYDROXY-CARBOFURAN;
VEGETABLES;
BEHAVIOR;
SAMPLES;
CU2+;
D O I:
10.1039/d4ay00030g
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
This study presents a novel approach for the detection of carbofuran (CBF) insecticide by systematically exploring a calix[4]arene-derived fluorescence probe, CouC4S, functionalized with two coumarin-labelled cystamine linkages at the narrow edge of the calix[4]arene platform. The proposed method showed a fluorescence "signal - off" effect when CBF binds with CouC4S by quenching the fluorescence intensity of CouC4S. Its limit of detection was as low as 5.55 mu M according to the emission study. The working concentration range for this ligand was observed to be up to 5-65 mu M. This method could be applied for the on-spot detection of CBF in real samples such as cabbage by spiking CBFvia in situ experiments, which exhibited a limit of detection of 8.823 ppm. For the further confirmation of CouC4S:CBF binding, cyclic voltammetry, differential pulse voltammetry, powder X-ray diffraction, FT-IR spectroscopy, 1H NMR titration, MALDI-TOF and computational investigations were carried out. This study presents a novel approach for the detection of carbofuran (CBF) insecticide by exploring a calix[4]arene-derived fluorescence probe, CouC4S, functionalized with two coumarin-labelled at the narrow edge of the calix[4]arene platform.
引用
收藏
页码:2400 / 2411
页数:12
相关论文