Antimony determination by hydride generation — UV-visible molecular absorption spectrophotometry with diode-array detection

Sanz, José María Serrano; Gallarta, Félix; Galbán, Javier; Castillo, Juan R.

doi:10.1007/bf00490759

Cited by 14 publications

(5 citation statements)

References 13 publications

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“…2) presents a maximum plane absorption at 194 nm. By programming the spectrophotometer [31], it is possible to obtain a By programming the spectrophotometer using a BASIC program [31], it is possible to obtain the variation of absorbance versus time at a fixed wavelength (194 nm in this instance) at intervals of 0.1 s during a total time of 5 s, which is enough time to obtain the complete transient signal in optimum conditions (Fig. 3).…”

Section: Ammonia Evolutionmentioning

confidence: 99%

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Ammonium determination in wine by gas phase molecular absorption spectrometry

et al. 1993

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Abstract.A procedure for the determination of ammonium is described, based on its transformation into ammonia gas and subsequent measurement by UVvisible molecular absorption spectrometry at 194 nm. Two different procedures for generating the ammonia are proposed, using NaOH solution and solid NaOH, respectively. After generation conditions for both procedures had been optimized, better sensitivity was observed with solid NaOH. In these conditions, the method showed two ranges of linear response: from 1 to 100/~g and from 100 to 400 #g of ammonium. Finally, we determined ammonium in wine samples. Preliminary studies indicated that the only observable interfering species was ethanol, which could be eliminated by subjecting the sample to vacuum evaporation until nearly dry. This process also increased the sensitivity of the method by as much as ten times. The values obtained from three different wine samples yielded results within the range of the concentration obtained by other authors. The recovery of ammonium added to the wine samples was around 95%.

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Section: Ammonia Evolutionmentioning

confidence: 99%

“…This avoids some of the inconveniences of the classical techniques mentioned above and makes it possible to determine Sb [31], Se [32], As [33] and Ge [34] by hydride generation-MAS.…”

mentioning

confidence: 99%

Ammonium determination in wine by gas phase molecular absorption spectrometry

et al. 1993

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“…However, the task of widespread monitoring of antimony is not yet solved. High-performance liquid chromatography [7], electrothermal atomic absorption spectrometry [8][9][10], atomic fluorescence spectroscopy [8], anodic stripping voltammetry [11,12], and multi-syringe flow injection analysis with hydride generation-atomic fluorescence detection [13] are currently the main methods for Sb3+ detection. However, the listed approaches require expensive equipment, highly qualified workers, and can be implemented only in a limited amount of laboratories.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Currently, a range of easy and cheap colorimetric techniques has been proposed to determine the presence of antimony [7,[14][15][16][17]. The first technique was based on antimony hydride generation and its detection by UV-spectrophotometry [7]. Various indicator dyes, such as pyrogallol red [15], pyridine-2,6dicarboxylic acid [18], brilliant green, malachite green and crystal violet [16,19], and bromopyrogallol red [16], are traditionally used for these assays.…”

Section: Introductionmentioning

confidence: 99%

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Colorimetric Technique for Antimony Detection Based on the Use of Gold Nanoparticles Conjugated with Poly-A Oligonucleotide

et al. 2019

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A simple and rapid positive–negative colorimetric approach to determine the presence of antimony ions based on the use of gold nanoparticles conjugated with oligonucleotide (poly-A sequence) is developed. Colorimetric measurements reveal that the aggregates of modified gold nanoparticles were afforded after adding antimony ions, thus changing the solution color from pink to blue. The results of aptamer’s interaction on the gold nanoparticle surface with the target analyte can be detected either by photometry or by the naked eye. The realized assay provides rapid (2 min), sensitive (detection limit 10 ng/mL), specific, and precise (variation coefficient less than 3.8%) detection of antimony (III) in drinking water.

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Accurate and sensitive determination of Sb(III) in water samples using UV–VIS spectrophotometry after simultaneous complexation and preconcentration with deep eutectic solvent/DTZ probe-based liquid–liquid microextraction

Yağmuroğlu

2022

Environ Monit Assess

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Antimony determination by hydride generation — UV-visible molecular absorption spectrophotometry with diode-array detection

Cited by 14 publications

References 13 publications

Ammonium determination in wine by gas phase molecular absorption spectrometry

Ammonium determination in wine by gas phase molecular absorption spectrometry

Colorimetric Technique for Antimony Detection Based on the Use of Gold Nanoparticles Conjugated with Poly-A Oligonucleotide

Accurate and sensitive determination of Sb(III) in water samples using UV–VIS spectrophotometry after simultaneous complexation and preconcentration with deep eutectic solvent/DTZ probe-based liquid–liquid microextraction

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