Dual-wavelength β-correction spectrophotometric determination of trace concentrations of cyanide ions based on the nucleophilic addition of cyanide to imine group of the new reagent 4-hydroxy-3-(2-oxoindolin-3-ylideneamino)-2-thioxo-2H-1,3-thiazin-6(3H)-one

Hamza, A.; Bashammakh, Abdulaziz S.; Al-Sibaai, A.A.; Al-Saidi, Hamed M.; El-Shahawi, M.S.

doi:10.1016/j.aca.2009.10.025

Cited by 30 publications

(6 citation statements)

References 28 publications

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“…To avoid this problem, β-correction spectrophotometric technique [37] can be applied to find out the real concentration of colored anion complex of chemosensors. Thus, UV-vis spectrum was Absorption spectrum infers that the absorbance intensity in the visible region is lower for dual wavelength measurement than normal measurement.…”

Section: β-Correction Spectrophotometric Techniquementioning

confidence: 99%

Fluorogenic and chromogenic heterocyclic thiourea: Selective recognition of cyanide ion via nucleophilic addition reaction and real sample analysis

Suganya

Velmathi

2015

Sensors and Actuators B: Chemical

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Section: β-Correction Spectrophotometric Techniquementioning

confidence: 99%

Fluorogenic and chromogenic heterocyclic thiourea: Selective recognition of cyanide ion via nucleophilic addition reaction and real sample analysis

Suganya

Velmathi

2015

Sensors and Actuators B: Chemical

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“…optical [5,6], electrochemical [7,8], and chromatographic [4,9,10] are known for cyanide determination. However, they have shortcomings like large sample consumption, time consuming, multistep procedures with cumbersome pretreatment of samples, and complicated instrumentations.…”

Section: Introductionmentioning

confidence: 99%

Headspace sorptive solid phase microextraction (HS-SPME) combined with a spectrophotometry system: A simple glass devise for extraction and simultaneous determination of cyanide and thiocyanate in environmental and biological samples

Al-Saidi

Al‐Harbi

Aljuhani

et al. 2016

Talanta

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“…Ma et al reviewed developments in cyanide detection between 2005 and April 2010. The interest in cyanide still is growing; many publications that cover almost all aspects of modern instrumental analysis have appeared, for example, spectrophotometry , electrochemistry , fluorimetry , chemiluminescence (CL) and chromatography .…”

Section: Introductionmentioning

confidence: 99%

Turn‐off–on chemiluminescence determination of cyanide

2014

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A flow injection chemiluminescence (FI-CL) method was developed for the determination of cyanide (CN(-) ) based on the recovered CL signal by Cu(2+) inhibiting a glutathione (GSH)-capped CdTe quantum dot (QD) and hydrogen peroxide system. In an alkaline medium, strong CL signals were observed from the reaction of CdTe QDs and H2O2 , and addition of Cu(2+) could cause significant CL inhibition of the CdTe QDs-H2O2 system. In the presence of CN(-) , Cu(2+) can be removed from the surface of CdTe QDs via the formation of particularly stable [Cu(CN)n ]((n-1)-) species, and the CL signal of the CdTe QDs-H2O2 system was efficiently recovered. Thus, the CL signals of CdTe QDs-H2O2 system were turned off and turned on by the addition of Cu(2+) and CN(-) , respectively. Further, the results showed that among the tested ions, only CN(-) could recover the CL signal, which suggested that the CdTe QDs-H2O2 -Cu(2+) CL system had highly selectivity for CN(-) . Under optimum conditions, the CL intensity and the concentration of CN(-) show a good linear relationship in the range 0.0-650.0 ng/mL (R(2) = 0.9996). The limit of detection for CN(-) was 6.0 ng/mL (3σ). This method has been applied to detect CN(-) in river water and industrial wastewater with satisfactory results.

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Dual-wavelength β-correction spectrophotometric determination of trace concentrations of cyanide ions based on the nucleophilic addition of cyanide to imine group of the new reagent 4-hydroxy-3-(2-oxoindolin-3-ylideneamino)-2-thioxo-2H-1,3-thiazin-6(3H)-one

Cited by 30 publications

References 28 publications

Fluorogenic and chromogenic heterocyclic thiourea: Selective recognition of cyanide ion via nucleophilic addition reaction and real sample analysis

Fluorogenic and chromogenic heterocyclic thiourea: Selective recognition of cyanide ion via nucleophilic addition reaction and real sample analysis

Headspace sorptive solid phase microextraction (HS-SPME) combined with a spectrophotometry system: A simple glass devise for extraction and simultaneous determination of cyanide and thiocyanate in environmental and biological samples

Turn‐off–on chemiluminescence determination of cyanide

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