Selectively light scattering spectrometric detection of copper (II) based on a new synthesized oxamide ligand

Long, Yun Fei; Huang, Cheng; He, Rong; Li, Yuan Fang

doi:10.1016/j.aca.2008.06.031

Cited by 9 publications

(3 citation statements)

References 31 publications

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“…3c), indicating that the interaction (etching) between Ag-NPs and H 2 S occurred. This result is consistent with the RLS intensity (I RLS ) of Ag-NPs was decreased in the presence of H 2 S. According to the literature [33][34][35], we concluded that the I RLS of the system may be decreased due to the decreasing in the number of the scattering particles per unit volume (N), or the volume of one particle (V), or both V and N, when the conditions of the instrument and the solvent are kept constant. As the results shown in Fig.…”

Section: Optimization Of the Synthesis Conditionssupporting

confidence: 94%

Highly sensitive and selective determination of hydrogen sulfide by resonance light scattering technique based on silver nanoparticles

2017

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We have developed a green approach to prepare DNA-templated silver nanoparticles (Ag-NPs) from the direct reaction between Ag and ascorbic acid in the presence of DNA and sodium hydroxide. The Ag-NPs showed strong resonance light scattering (RLS) intensity property. Then, the interaction between hydrogen sulfide (HS) and Ag-NPs was studied by measuring their RLS spectra. The results showed that there is a strong interaction between Ag-NPs and HS, which resulted in a decrease in the size of Ag-NPs and a decrease in the RLS intensity of the Ag-NPs solution at the wavelength of 467 nm. The results demonstrated that the RLS technique offers a sensitive and simple tool for investigating the interaction between Ag-NPs and HS, which can be applied to detect HS with high sensitivity and selectivity without complex readout equipment. The linear range for HS determination was found to be the range from 5.0 × 10 to 1.0 × 10 mol L, and the detection limit (3σ/k) was 2.8 × 10 mol L. Moreover, the proposed method was applied for the determination of HS in natural water samples with satisfactory results. Graphical abstract The application of Ag-NPs in HS detection.

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Section: Optimization Of the Synthesis Conditionssupporting

confidence: 94%

Highly sensitive and selective determination of hydrogen sulfide by resonance light scattering technique based on silver nanoparticles

2017

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“…[227][228][229] They are also commonly used as ligands for catalysis, due to their chelating properties. [230][231][232] Oxamides containing N,N-substituents are obtained via a sequential double nucleophilic attack on the oxalyl chloride by the desired amines. The obtained substituted oxamides can then be submitted to an ortho-CÀ H functionalization method, as described by Shi and Zhao (2016) [233] in a rhodium-catalyzed CÀ H/CÀ H cross-coupling reaction, or by Wen and Zhao (2015) [234] in a palladiumcatalyzed silylation.…”

Section: Scheme 34 Synthesis and Application Of Symmetrical Hydrazones On Different Rhodium-catalyzed Cà H Functionalization Reactionsmentioning

confidence: 99%

“…This functional group is present in fertilizers that work as a substituent for urea [227–229] . They are also commonly used as ligands for catalysis, due to their chelating properties [230–232] . Oxamides containing N,N ‐substituents are obtained via a sequential double nucleophilic attack on the oxalyl chloride by the desired amines.…”

Section: N‐based Groupsmentioning

confidence: 99%