Automated determination of sulfide by cool flame molecular emission spectrometry

Arowolo, T. A.; Cresser, Malcolm S.

doi:10.1016/0026-265x(92)90077-g

Cited by 12 publications

(5 citation statements)

References 28 publications

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“…Traditional methods of H 2 S detection, including sulfide selective electrodes, gas chromatography, or the methylene blue assay, are often limited by poor compatibility with live cells, limited temporal resolution, or extensive sample preparation requirements . Several methods are currently used for the detection and measurement of H 2 S including electrochemical , colorimetric (Zn‐acetate trap + phenylenediamine) , spectrophotometric , chemiluminescence , ion chromatography , gas chromatography , as well as other HPLC‐based methods . Although CE can easily separate very complex mixtures, low concentration sensitivity prevents the detection of trace levels of analytes.…”

Section: Precision and Accuracy Data Of The Ce Methods For H2s Determimentioning

confidence: 99%

Simple micellar electrokinetic chromatography method for the determination of hydrogen sulfide in hen tissues

et al. 2015

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A new method for the determination of hydrogen sulfide in hen tissues has been developed and validated. For estimation of hydrogen sulfide content, a sample (0.1 g) of hen tissue was treated according to the procedure consisted of some essential steps: simultaneous homogenization of a tissue and derivatization of hydrogen sulfide to its S-quinolinium derivative with 2-chloro-1-methylquinolinium tetrafluoroborate, separation of so-formed derivative by micellar electrokinetic chromatography with sweeping, and detection and quantitation with the use of UV detector set to measure analytical signals at 375 nm. Effective electrophoretic separation was achieved using fused silica capillary (effective length 41.5 cm, 75 μm id) and 0.05 mol/L, pH 8 phosphate buffer with the addition of 0.04 mol/L SDS and 26% ACN. The lower limit of quantification was 0.12 μmol hydrogen sulfide in 1 g of tissue. The calibration curve prepared in tissue homogenate for hydrogen sulfide showed linearity in the range from 0.15 to 2.0 μmol/g, with the coefficient of correlation 0.9978. The relative standard deviation of the points of the calibration curve varied from 8.3 to 3.2% RSD.

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Section: Precision and Accuracy Data Of The Ce Methods For H2s Determimentioning

confidence: 99%

Simple micellar electrokinetic chromatography method for the determination of hydrogen sulfide in hen tissues

et al. 2015

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“…The addition of powdered carbon (288) was shown to provide an approximately 2-fold sensitivity improvement in FAAS. Molecular emission spectrometry in a H2-N2-air flame was used to determine S after converting sulfur compounds to H2S, which was swept into the flame (289,290). Fluoride was determined by the molecular absorption of A1F in a N2O-C2H2 flame (291).…”

Section: Flame Atomic Absorption and Emissionmentioning

confidence: 99%

Atomic Absorption, Atomic Emission, and Flame Emission Spectrometry

Jackson¹,

Mahmood²

1994

Anal. Chem.

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“…Arowolo and Cresser [12] found that a 5 g mL −1 sample of sulfide produced emission from H 2 S that was approximately four times more intense than that from the SO 2 generated from 100 g mL −1 of sulfite following reaction with hydrochloric acid. The best sensitivity and hence detection limits will only be achieved if the sulfur compounds are reduced to the S 2− state.…”

Section: Introductionmentioning

confidence: 99%

“…The relevant species can be produced in cool flames [10] whose temperatures can be controlled by diluting the fuel with an inert gas, such as argon or nitrogen [11]. However, when solutions are nebulized into such flames, the solvent evaporation and sample vaporization are inefficient [12]. One method of avoiding this limitation is conversion of the analyte to a volatile derivative that can then be transported to the flame as a vapor.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous detection of selenium by atomic fluorescence and sulfur by molecular emission by flow-injection hydride generation with on-line reduction for the determination of selenate, sulfate and sulfite

Tyson

Palmer

2009

Analytica Chimica Acta

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Simultaneous detection of selenium by atomic fluorescence and sulfur by molecular emission by flowinjection hydride generation with on-line reduction for the determination of selenate, sulfate and sulfite" (2009 An inductively coupled plasma atomic fluorescence spectrometry (ICP-AFS) instrument, was modified so that it was capable of monitoring transient chromatographic or flow-injection profiles and that sulfur molecular emission and selenium atomic fluorescence could be monitored simultaneously in an argon-hydrogen diffusion flame on a glass burner. The analytes were introduced as hydrogen selenide and hydrogen sulfide, generated on a flow-injection manifold. Selenate was reduced to hydride-forming selenite by microwave-assisted on-line reaction with hydrochloric acid, and sulfate, or sulfite, was reduced to hydride-forming sulfide by a mixture of hydriodic acid, acetic acid and sodium hypophosphite. The effects of the nature of reducing agent, flow rate, microwave power and coil length were studied. The limit of detection (3 s) for selenium was 10 g L −1 , and for sulfide was 70 g L −1 (200-L injection volume). The calibration was linear for selenium up to 2 mg L −1 and to 10 mg L −1 for sulfide. The throughput was 180 h −1 . The three sulfur species could be differentiated on the basis of reactivity at various microwave powers.

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Automated determination of sulfide by cool flame molecular emission spectrometry

Cited by 12 publications

References 28 publications

Simple micellar electrokinetic chromatography method for the determination of hydrogen sulfide in hen tissues

Simple micellar electrokinetic chromatography method for the determination of hydrogen sulfide in hen tissues

Atomic Absorption, Atomic Emission, and Flame Emission Spectrometry

Simultaneous detection of selenium by atomic fluorescence and sulfur by molecular emission by flow-injection hydride generation with on-line reduction for the determination of selenate, sulfate and sulfite

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