Sensitive determination of copper in water samples using dispersive liquid-liquid microextraction-slotted quartz tube-flame atomic absorption spectrometry

Özzeybek, Gözde; Erarpat, Sezin; Chormey, Dotse Selali; Fırat, Merve; Büyükpınar, Çağdaş; Turak, Fatma; Bakırdere, Sezgin

doi:10.1016/j.microc.2017.02.031

Cited by 70 publications

(15 citation statements)

References 24 publications

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“…Prisustvo Cu(II) u koncentracijama do 1 µM nije uticalo na detekciju Sb(III). S obzirom da su koncentracije Cu (II) u vodi i flaširanim pićima do približno te vrednosti [12,13], ispitana kompozitna elektroda može biti korišćena u praktične analitičke svrhe.…”

Section: Određivanje Sb(iii) U Model Rastvoruunclassified

Electrochemical detection of antimony on electrodes based on poly(vinyl alcohol)/clay composites

Marinović¹,

Mudrinić²,

Milutinović-Nikolić³

et al. 2019

Tehnika

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Institut za hemiju, tehnologiju i metalurgiju, Centar za katalizu i hemijsko inženjerstvo, Beograd ALEKSANDRA D. MILUTINOVIĆ-NIKOLIĆ, Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju, Centar za katalizu i hemijsko inženjerstvo, Beograd ZORICA D. MOJOVIĆ, Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju, Centar za katalizu i hemijsko inženjerstvo, Beograd Sintetisani su kompoziti gline i poli(vinil alkohola) (PVA) sa masenim odnosima PVA/glina 10% i 20%. Kompoziti su naneti na površinu disk elektrode od staklastog ugljenika pomoću Nafiona. Tako modifikovane elektrode su korišćene za detekciju antimona. Poređenjem sa ponašanjem nemodifikovanih glina praćen je uticaj PVA na osetljivost elektroda za detekciju antimona. Dorpinos Nafiona je određen testiranjem elektrode koja je prekrivena samo Nafionom. Osetljivost modifikovane elektrode za detekciju antimona je povećana formiranjem poli(pirogalolnog) filma na površini elektrode. Elektroda je pokazala dobru reproduktivnost i limit detekcije od 0,2 µM. Prisustvo Cu(II) katjona u koncentracijama većim od 1µM je značajno ometalo detekciju antimona na isptivanoj elektrodi.

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Section: Određivanje Sb(iii) U Model Rastvoruunclassified

Electrochemical detection of antimony on electrodes based on poly(vinyl alcohol)/clay composites

Marinović¹,

Mudrinić²,

Milutinović-Nikolić³

et al. 2019

Tehnika

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“…Several analytical techniques, such as atomic absorption spectrometry, [18][19][20] inductively coupled plasma (ICP)-mass spectroscopy, 21 inductively coupled plasma atomic emission spectrometry, 22 and electrochemical methods, 23 have been developed for the detection of Cu 2+ under various conditions. However, some shortcomings, such as time consuming, harsh experimental conditions, and tedious synthetic protocol, limit their application in Cu 2+ detection.…”

Section: Introductionmentioning

confidence: 99%

Positively Charged and pH‐sensitive Carbon Dots for Fluorescence Detection of Copper Ion

Feng

Miao

Zhang

et al. 2020

Bulletin Korean Chem Soc

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As an essential trace element in the human body, copper ion (Cu 2+) performs an important role in many fundamental physiological processes that need a facile and effective method for the monitoring of Cu 2+ in organisms. Herein, a turn-off, facile fluorescent strategy for sensing Cu 2+ was proposed using positively charged carbon dots (P-CDs) as probe. The P-CDs prepared from melting strategy exhibited stable, biocompatible, and pH-sensitive luminescent properties. P-CDs can be selectively quenched by Cu 2+ for the direct detection of Cu 2+. The reaction mechanism between Cu 2+ and P-CDs was systematically investigated, illustrating that Cu 2+ coordinated with the surface functional groups in P-CDs. The binding effect of Cu 2+ and P-CDs caused the constant morphology and static quenching behavior of P-CDs. The promising accuracy of the testing results of the addition of Cu 2+ in diluted serum using P-CDs implied their extended application in the biological field.

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“…However, these techniques cost much more than Flame atomic absorption spectrometry (FAAS) and Electrothermal atomic absorption spectrometry (ETAAS). FAAS is considered a robust, low-cost and high analytical frequency technique, enabling reliable measurements at low concentration levels (Kilinç et al, 2012;Özzeybek et al, 2017). While the ETAAS has as main advantages the complete analyte atomization, elimination of organic components by thermal treatment prior to vaporization and atomization of the metals and use of small sample volumes only a few microliters of sample (Fernández et al, 2019;Wilschefski & Baxter, 2019).…”

Section: Introductionmentioning

confidence: 99%

Selected minerals concentration and microbiological safety in non-carcass bovine components of “PANELADA” dish

et al. 2020

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Panelada" is a typical dish from Brazil, made up of some bovine non-carcass components (intestine, rumen and ox feet), whose nutritional value and microbiological quality are not reported. The total contents of selected minerals were determined using flame atomic absorption spectrometry (FAAS) and electrothermal (ETAAS) for samples of raw, seasoned and Panelada dish. The content of metal nutrients found in raw sample was higher than for various types of conventional cuts and meats. The added seasoning increased of the content of metal nutrients comparing to from raw sample, except for Zn. Instead, the cooking process interferes negatively in the minerals content, in contrast to Mg concentration. The Panelada dish presented high nutritional value being found 3.3, 79, 334 and 75 mg kg-1 for Cu, Fe, Mg and Zn, respectively. The microbiological analyses revealed absence of Escherichia coli, Salmonella spp. and Listeria monocytogenes from Panelada dish.

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Sensitive determination of copper in water samples using dispersive liquid-liquid microextraction-slotted quartz tube-flame atomic absorption spectrometry

Cited by 70 publications

References 24 publications

Electrochemical detection of antimony on electrodes based on poly(vinyl alcohol)/clay composites

Electrochemical detection of antimony on electrodes based on poly(vinyl alcohol)/clay composites

Positively Charged and pH‐sensitive Carbon Dots for Fluorescence Detection of Copper Ion

Selected minerals concentration and microbiological safety in non-carcass bovine components of “PANELADA” dish

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