New room temperature coacervation scheme for lead traces determination by solid surface fluorescence. Application to wines produced in Argentina

Talio, María Carolina; Kaplan, M.; Acosta, Mariano; Gil, Raúl A.; Luconi, Marta Olga; Fernández, Liliana Patricia

doi:10.1016/j.microc.2015.06.014

Cited by 9 publications

(3 citation statements)

References 37 publications

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“…control laboratories. The application of luminescent methods to lead traces determination has shown several analytical advantages such as high sensitivity, proper selectivity and dynamic wide range when they have been associated to separation/preconcentration/sensitization steps [22,23].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Lead monitoring and control in tobacco products and E-cigarettes by molecular fluorescence

Talio

Pereyra

Acosta

et al. 2019

Microchemical Journal

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A new methodology for lead traces determination has been developed based on the quenching effect on fluorescent emission of the complex formed by the metal with 8hydroxyquinoline and o-phenanthroline at λ em = 365 nm (λ exc = 250 nm). Experimental variables that influence on fluorimetric sensitivity were optimized using uni-variation assays. The calibration graph using zero th order regression was linear from 1.21 µg L-1 to 518 µg L-1 , with correlation coefficient better than 0.999. Under the optimal conditions, the limits of detection and quantification were of 0.42 µg L −1 and 1.21µg L −1 respectively. The proposed method showed good sensitivity, adequate selectivity with good tolerance to foreign ions, and was applied to the determination of trace amounts of lead in leachate of tobacco products and refill solutions for e-cigarettes with satisfactory results. The trueness of the recommended procedure was assessed trough parallel analysis of the samples by ICP-MS. The proposed method represents an innovative

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Section: Accepted Manuscriptmentioning

confidence: 99%

Lead monitoring and control in tobacco products and E-cigarettes by molecular fluorescence

Talio

Pereyra

Acosta

et al. 2019

Microchemical Journal

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“…Additionally, it has been reported the ability of different substances to induce phase separation in aqueous solutions of bile salts as sodium cholate (NaC) at room temperature [18]. On the other hand, among cationic surfactants, cetyltrimethylammonium bromide (CTAB) constitutes undoubtedly an example of self-assembled ordered medium as micelles, and other structures and phases, having been widely employed in analytical chemistry with different purposes [19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Aluminium traces determination in biological and water samples using a novel extraction scheme combined with molecular fluorescence

Santarossa

Talio

Fernández

2016

Microchemical Journal

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“…Additionally, it has been reported the ability of different substances to induce phase separation in aqueous solutions of bile salts as sodium cholate (NaC) at room temperature [40]. On the other hand, among cationic surfactants, cetyltrimethylammonium bromide (CTAB) constitutes undoubtedly an example of self-assembled ordered medium as micelles, and other structures and phases, having been widely employed in analytical chemistry with different purposes [41][42][43][44][45][46][47].…”

mentioning

confidence: 99%

A Novel Green Nano Determination of Aluminium in Food, Biological and Water Samples Using a Cloud Point Extraction Combined with Spectrophotometry

Amin¹,

Al-Mallah²

2018

IJAT

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Oxygen, silicon and aluminium being the first, second and third most abundant element in the Earth's crust. Aluminium is found in air, water, soil, plant and animal tissues in different forms. It is released to the environment due to anthropogenic activities such as mining, industrial uses and production of aluminium metal and other aluminium compounds. For several years, it was not considered as a harmful metal for humans but animal experiments in 1965 suggested a possible connection between aluminium and Alzheimer's disease [1,3]. Oral intake of foodstuffs is the most important source of aluminium. According to the data of the American scientists, daily consumption of 0.1mg of aluminium with drinking water increases the risk of dementia 2.26 times and considerably reduces intellectual abilities [2]. Oral aluminium bioavailability from the diet has been estimated to be 0.1 to 0.3%, based on daily aluminium intake and urinary elimination. Results of a few studies with a controlled diet and

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New room temperature coacervation scheme for lead traces determination by solid surface fluorescence. Application to wines produced in Argentina

Cited by 9 publications

References 37 publications

Lead monitoring and control in tobacco products and E-cigarettes by molecular fluorescence

Lead monitoring and control in tobacco products and E-cigarettes by molecular fluorescence

Aluminium traces determination in biological and water samples using a novel extraction scheme combined with molecular fluorescence

A Novel Green Nano Determination of Aluminium in Food, Biological and Water Samples Using a Cloud Point Extraction Combined with Spectrophotometry

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