Phase transfer catalyst assisted directly suspended droplet microextraction of platinum from geological and spent automobile converter samples prior to HR-CS AAS determination

Reddy, T. Revathi; Meeravali, Noorbasha N.; Reddy, Α. V. R.

doi:10.1039/c3ay40172c

Cited by 7 publications

(6 citation statements)

References 22 publications

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“…On the other hand, after one year of presentation of SFOD technique for separation of organic substances, the feasibility of performance of SFOD in combinations with ETAAS for trace monitoring of metal ions was considered and a SFOD method for ultra-trace monitoring of lead was evaluated [34]. Reddy et al [35] firstly reported the combination of DSD microextraction in conjunction with ETAAS for platinum determination from geological and spent automobile converter samples.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Metal applications of liquid-phase microextraction

Aguirre

Baile

Vidal

et al. 2019

TrAC Trends in Analytical Chemistry

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This review focuses on the combination of elemental detection techniques with liquidphase microextraction (LPME), namely, single drop microextraction, hollow fiber based liquid-phase microextraction, dispersive liquid-liquid microextraction, and related techniques. General features of different microextraction procedures, historical overview and automation of LPME are described and compared, along with examples of new developments and applications presented to demonstrate its potential for trace and ultra-trace metal analysis. Furthermore, potential applications and an outlook on the combination of LPME and elemental detection techniques for inorganic analysis are presented.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Metal applications of liquid-phase microextraction

Aguirre

Baile

Vidal

et al. 2019

TrAC Trends in Analytical Chemistry

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“…Several reviews focused on HR-CS-GFAAS are available in the literature for interesting readers [145][146][147][148][149].The combination of LPME-HR-CS-GFAAS has been performed in few recent publications. Concretely, they involved the preconcentration of Cd from vegetable oils by UA-SDME [37], Cr from effluents and water sources by DLLME-SFO [67] and Pt from geological samples and spent automobile converter by DSDME [150] prior to HR-CS-GFAAS. HR-CS-GFAAS seems advantageous after LPME preconcentration due to the multielemental capability and spectral correction functions.…”

Section: Advances In Gfaas Instrumentationmentioning

confidence: 99%

“…Thus, it is possible to identify the cause of spectral interferences and remove it. Additionally, an automatic background correction that detects all the absorption signals of the matrix is also available, thus avoiding errors due to the incorrect setting of measurement points [150].…”

Section: Advances In Gfaas Instrumentationmentioning

confidence: 99%

Liquid-phase microextraction combined with graphite furnace atomic absorption spectrometry: A review

Calle

Pena‐Pereira

Lavilla

et al. 2016

Analytica Chimica Acta

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“…The United States is the second largest global producer of oranges, comprising about 11% of the international market (Reddy et al 2013). The principal vitamin available in oranges is ascorbic acid (AA), one of the 13 essential vitamins for human nutrition, which, in addition to being a required enzymatic cofactor for processes including collagen and neurotransmitter creation, is also reported to serve as a natural antioxidant, reducing the oxidative damage caused by free radicals (Nimse & Pal 2015).…”

Section: Introductionmentioning

confidence: 99%

Point-of-use detection of ascorbic acid using a spectrometric smartphone-based system

et al. 2019

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A rapid and portable analytical methodology has been developed for ascorbic acid (Vitamin C) quantification from aqueous samples using a spectrometric smartphone-based system for the first time. The method employs point-of-use approaches both for sample preparation and sample measurement, demonstrating the capability for mobile quality control of pharmaceutical and food products. Our approach utilizes an oxidation-reduction reaction between ascorbic acid and methylene blue, followed by a dispersive liquid-liquid microextraction (DLLME) to extract the aqueous-phase methylene blue into organic media. Then, a back-extraction procedure is employed to transfer the methylene blue to aqueous media, followed by analysis of the sample's absorption spectrum using the spectrometric smartphone-based system. The DLLME and backextraction procedures are optimized by use of a two-step multivariate optimization strategy. Finally, vitamin C supplements and orange juice are used as real-world samples to assess the applicability of the smartphone-based method, which is successfully compared with the standard laboratory-based approach.

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Phase transfer catalyst assisted directly suspended droplet microextraction of platinum from geological and spent automobile converter samples prior to HR-CS AAS determination

Cited by 7 publications

References 22 publications

Metal applications of liquid-phase microextraction

Metal applications of liquid-phase microextraction

Liquid-phase microextraction combined with graphite furnace atomic absorption spectrometry: A review

Point-of-use detection of ascorbic acid using a spectrometric smartphone-based system

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