scholarly journals NMR determination of concentration-switchable inclusion complex of a β-cyclodextrin derivative carrying a benzene group linked to a C,C-glucopyranoside spacer

2017 ◽  
Vol 89 (1-2) ◽  
pp. 189-197
Author(s):  
Takashi Yamanoi ◽  
Yoshiki Oda ◽  
Kaname Katsuraya
Keyword(s):  
Inclusion Complex ◽  
Cyclodextrin Derivative

Study on the Determination of Carbendazim in Water and Vegetable Samples

2014 ◽  
Vol 955-959 ◽  
pp. 1351-1354 ◽  
Author(s):  
Ji Cheng Xu ◽  
Xin Shan Rong ◽  
Ting Tian ◽  
Feng Xian Qiu
Keyword(s):  
Complex Formation ◽  
Inclusion Complex ◽  
Fluorescence Intensity ◽  
Limit Of Detection ◽  
Sensitivity Factor ◽  
Inclusion Complex Formation ◽  
Cyclodextrin Derivative ◽  
Vegetable Samples ◽  
Fruit Samples

The host-guest inclusion complex formation between 3, 3’-benzidine/β-cyclodextrin derivative (BDCD) and pesticide carbendazim was studied and characterized by TEM and XRD. The result showed that inclusion complex had hydrophobic small-molecule fluorophores. The fluorescence titration was performed to calculate binding constant, sensitivity factor and limit of detection of the resulting complex. Based on the enhancement of the fluorescence intensity of carbendazim produced throught complex formation, a new sensitive method for the determination of carbendazim was established. A linear relationship was obtained between the fluorescence intensity and carbendazim concentration in the range of 3.57 and 17.83 μmol/L. The correlation coefficient, the lowest limit of detection and RSD were 0.9916, 15.51 nmol/L and 2.13%, respectively. This method has better anti-interference ability and stability. The proposed method have been successfully applied to the determination of carbendazim pesticide residues in water, vegetable and fruit samples with satisfactory results, recoveries in the range of 87.56 % to 104.04 % were obtained.

Determination of the inclusion complex constant between oleuropein and cyclodextrins by complexation theory

2013 ◽  
Vol 78 (1-4) ◽  
pp. 465-470 ◽  
Author(s):  
Carlos Eduardo Barão ◽  
Fátima Paiva-Martins ◽  
Gisella Maria Zanin ◽  
Flavio Faria Moraes
Keyword(s):  
Inclusion Complex ◽  
Complex Constant

An “on–off” fluorescent probe based on cucurbit[7]uril for highly sensitive determination of ammonia nitrogen in aquaculture water

2021 ◽  
Author(s):  
Zhen Li ◽  
Tan Wang ◽  
Xianbao Xu ◽  
Cong Wang ◽  
Daoliang Li
Keyword(s):  
Fluorescence Quenching ◽  
Inclusion Complex ◽  
Fluorescent Probe ◽  
Ammonia Nitrogen ◽  
Highly Sensitive ◽  
Sensitive Determination ◽  
Aquaculture Water

A novel “on–off” fluorescent probe for the determination of ammonia nitrogen has been synthesized. URO can replace PAL into the cavity of CB[7] to form a stable inclusion complex, eventually forming the fluorescence quenching system of URO@CB[7].

scholarly journals A new strategy for the sensitive electrochemical determination of nitrophenol isomers using β-cyclodextrin derivative-functionalized silicon carbide

RSC Advances ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 775-784 ◽  
Author(s):  
Shilian Wu ◽  
Shuangmei Fan ◽  
Shuang Tan ◽  
Jiaqiang Wang ◽  
Can-Peng Li
Keyword(s):  
Silicon Carbide ◽  
Electrochemical Determination ◽  
Cyclodextrin Derivative ◽  
New Strategy

An illustration of simultaneous electrochemical determination of nitrophenol isomers using β-cyclodextrin derivative-functionalized silicon carbide.

Fluorimetric determination of scandium using the cyclodextrin-1,4-dihydroxyanthraquinone inclusion complex

The Analyst ◽  
1987 ◽  
Vol 112 (7) ◽  
pp. 1037-1040 ◽  
Author(s):  
F. García Sánchez ◽  
M. Hernandez Lopez ◽  
J. C. Marquez Gómez
Keyword(s):  
Inclusion Complex ◽  
Fluorimetric Determination
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