Spectrophotometric Study of the Interaction of β‐Cyclodextrin with Hydroxamic acids

Ghosh, Kallol K.; Sharma, Pokhraj

doi:10.1081/dis-200063031

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…The addition of 5 gives rise to a decreased absorbance intensity, but does not cause a shift in the k max values, as reported for similar systems. 17 The multiwavelength and multivariate treatment of data indicate the presence of a 1:1 species only for the system. The complex formation was also studied by investigating the effect of 5 on the fluorescence quenching of AQS.…”

mentioning

confidence: 99%

Synthesis and characterisation of the 3-amino-derivative of γ-cyclodextrin, showing receptor ability and metal ion coordination properties

Contino¹,

Cucinotta²,

Giuffrida³

et al. 2008

Tetrahedron Letters

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mentioning

confidence: 99%

Synthesis and characterisation of the 3-amino-derivative of γ-cyclodextrin, showing receptor ability and metal ion coordination properties

Contino¹,

Cucinotta²,

Giuffrida³

et al. 2008

Tetrahedron Letters

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“…The formation constant (Kf) of the complex was calculated by applying a suitable mathematical treatment (Ghosh and Sharma, 2005) to the previous data. For this purpose, log[(Amax -Ax)/ (Ax -A0)] was plotted against log[Fe(III),M], where A0 and Amax were minimum and maximum absorbancies, respectively, and Ax the given absorbance for a specific Fe(III) concentration.…”

Section: Formation Constantmentioning

confidence: 99%

Novel optical PVC probes for on-site detection/determination of fluoroquinolones in a solid/liquid interface: Application to the determination of Norfloxacin in aquaculture water

Silva

Moreira

Truta

et al. 2012

Biosensors and Bioelectronics

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A novel optical disposable probe for screening fluoroquinolones in fish farming waters is presented, having Norfloxacin (NFX) as target compound. The colorimetric reaction takes place in the solid/liquid interface consisting of a plasticized PVC layer carrying the colorimetric reagent and the sample solution. NFX solutions dropped on top of this solid-sensory surface provided a colour change from light yellow to dark orange.Several metals were tested as colorimetric reagents and Fe(III) was selected. The main parameters affecting the obtained colour were assessed and optimised in both liquid and solid phases. The corresponding studies were conducted by visible spectrophotometry and digital image acquisition. The three coordinates of the HSL model system of the collected image (Hue, Saturation and Lightness) were obtained by simple image management (enabled in any computer).The analytical response of the optimised solid-state optical probe against concentration was tested for several mathematical transformations of the colour coordinates. Linear behaviour was observed for logarithm NFX concentration against Hue þ Lightness. Under this condition, the sensor exhibited a limit of detection below 50 mM (corresponding to about 16 mg/mL). Visual inspection also enabled semi-quantitative information. The selectivity was ensured against drugs from other chemical groups than fluoroquinolones.Finally, similar procedure was used to prepare an array of sensors for NFX, consisting on different metal species. Cu(II), Mn(II) and aluminon were selected for this purpose. The sensor array was used to detect NFX in aquaculture water, without any prior sample manipulation.

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Influence of hydroxypropyl-β-cyclodextrin on the photostability and antiradical activity of Trolox

Carlotti

Sapino

Marino

et al. 2008

J Incl Phenom Macrocycl Chem

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Spectrophotometric Study of the Interaction of β‐Cyclodextrin with Hydroxamic acids

Cited by 4 publications

References 39 publications

Synthesis and characterisation of the 3-amino-derivative of γ-cyclodextrin, showing receptor ability and metal ion coordination properties

Synthesis and characterisation of the 3-amino-derivative of γ-cyclodextrin, showing receptor ability and metal ion coordination properties

Novel optical PVC probes for on-site detection/determination of fluoroquinolones in a solid/liquid interface: Application to the determination of Norfloxacin in aquaculture water

Influence of hydroxypropyl-β-cyclodextrin on the photostability and antiradical activity of Trolox

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