Spectrophotometric determination of vanadium in glass and ceramics after extraction of the vanadium—salicylhydroxamic acid complex on polyurethane foam

Bhattacharya, Swagata; Roy, S. K.; Chakraburtty, A.K.

doi:10.1016/0003-2670(92)80159-5

Cited by 5 publications

(2 citation statements)

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“…9 SHAM is also used as an analytical spectrophotometric reagent for determination of iron, molybdenum, vanadium, and uranium ions. 10,11 Different analytical methods have been reported in the literature for SHAM determination, two among which are spectrophotometry 10,12−15 and liquid chromatography. 16−18 The reported spectrophotometric methods have low sensitivity, involve reactions with metal ions under strictly controlled conditions, and have poor selectivity because of the interference arising from the major drug degradation and metabolite products.…”

Section: Introductionmentioning

confidence: 99%

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Paper-Based Potentiometric Device for Rapid and Selective Determination of Salicylhydroxamate as a Urinary Struvite Stone Inhibitor

et al. 2021

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Novel paper-based potentiometric platforms for rapid, costeffective, and simple determination of the salicylhydroxamic acid (SHAM) drug are presented. Both the SHAM sensor and the reference Ag/AgCl electrode were integrated together on the miniaturized paper platforms. The ion-sensing membrane for the presented sensor is based on the use of Sn IV -tetraphenylporphyrin (Sn IV TPP) as a charged carrier within a plasticized poly(vinyl chloride) (PVC) matrix. Multiwalled carbon nanotubes (MWCNTs) were used as an ion-to-electron transducer. The resulting sensor revealed a rapid and stable response with a Nernstian slope of −59.3 ± 0.7 mV/decade over the linear range of 1.0 × 10 −6 to 1.0 × 10 −3 M and a detection limit of 0.7 μM. All measurements were carried out in 30 mM phosphate-buffered solution (PBS) at pH 7.2. Intra-and interday precision were measured and found to be 1.7%. The relative standard deviation (RSD%) ( = 5) was calculated as 2.43% after utilizing five different electrodes (n = 5). The selectivity behavior of the prepared electrodes in the absence and presence of ionic additives was evaluated. The selectivity pattern showed a non-Hofmeister selectivity pattern in the existence of anionic additives with enhanced potentiometric selectivity for SHAM over different lipophilic anions (e.g., ClO 4 − , SCN − , and I − ). The presented device was successfully applied for SHAM determination in pharmaceutical preparations. This paper-based analytical device can be potentially manufactured at large scales and provides a portable, rapid, disposable, and cost-effective analytical tool for measuring the SHAM drug.

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Section: Introductionmentioning

confidence: 99%

“…In addition, it is used to reduce serum uric acid and reduces the incidence of ureate and uric stones . SHAM is also used as an analytical spectrophotometric reagent for determination of iron, molybdenum, vanadium, and uranium ions. , …”

Section: Introductionmentioning

confidence: 99%