Use of fiberglass support in the application of dried-spot technique with dispersion liquid-liquid microextraction for the determination of Co, Cr, Cu, Ni and Pb by Energy Dispersive X-Ray Fluorescence Spectrometry

Almeida, Ohana Nadine de; Luzardo, Francisco Heriberto Martínez; Amorim, Fábio Alan Carqueija; Velasco, Fermín García; González, Luis Nieto

doi:10.1016/j.sab.2018.10.013

Cited by 17 publications

(2 citation statements)

References 42 publications

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“…Various instrumental detection system such as inductively couple plasma mass spectrometry (ICP-MS), inductively couple plasma optic emission spectrometry (ICP-OES), energy dispersive x-ray fluorescence spectrometry and atomic absorption spectrometry (AAS) have been used for the determination of traces heavy metal ions in food and environmental samples [9][10][11][12]. Atomic absorption spectrometry is the main instrument for the determination of heavy metals in food, soil and environmental samples because of its simplicity, low cost and sensitivity [13,14].…”

Section: Introductionmentioning

confidence: 99%

Flame atomic absorption spectrometric determination of multi element in apricot and soil samples after wet and microwave digestion method

Kaygusuz

Tüzen

2021

Cumhuriyet Science Journal

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Iron, copper, zinc, manganese, nickel, cobalt, lead, cadmium and chromium in various apricot and soil samples were determined by atomic absorption spectrometry in this study. Microwave digestion method and wet ashing method efficiency were compared for digestion of the samples. Recovery values were nearly found quantitative. The analysis results were evaluated. The accuracy of the digestion procedures was confirmed by analyzing Montana Soil and Apple Leaves certified reference materials. There are no important differences between digestion methods. The results were compared with literature values. Relative standard deviations were found below 10 %. Heavy metal levels in analyzed samples were not found toxic limits.

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Section: Introductionmentioning

confidence: 99%

Flame atomic absorption spectrometric determination of multi element in apricot and soil samples after wet and microwave digestion method

Kaygusuz

Tüzen

2021

Cumhuriyet Science Journal

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“…Glass fiber membranes have been widely used for sample preparation in processes such as DNA extraction [51] and removal of particles or sediments in air sampling [52]. A glass fiber membrane has also been used as a supporting substrate that has superior ability to enrich trace metals before analysis [53]. Interestingly, there have been reports on the use of glass fiber membrane incorporated with MIPs for determination of phenolic compounds [54].…”

Section: Introductionmentioning

confidence: 99%

Exploring Matrix Effects on Binding Properties and Characterization of Cotinine Molecularly Imprinted Polymer on Paper-Based Scaffold

et al. 2019

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Commercially available sorbent materials for solid-phase extraction are widely used in analytical laboratories. However, non-selective binding is a major obstacle for sample analysis. To overcome this problem, molecularly imprinted polymers (MIPs) were used as selective adsorbent materials prior to determining target analysts. In this study, the use of non-covalent molecularly imprinted polymers (MIPs) for cotinine adsorption on a paper-based scaffold was studied. Fiberglass paper was used as a paper scaffold for cotinine-selective MIP adsorption with the use of 0.5% agarose gel. The effects of salt, pH, sample matrix, and solvent on the cotinine adsorption and extraction process were investigated. Under optimal conditions, the adsorption isotherm of synthesized MIPs increased to 125.41 µg/g, whereas the maximum adsorption isotherm of non-imprinted polymers (NIPs) was stable at 42.86 µg/g. The ability of the MIP paper scaffold to absorb cotinine in water medium was approximately 1.8–2.8-fold higher than that of the NIP scaffold. From Scatchard analysis, two dissociation constants of MIPs were calculated to be 2.56 and 27.03 µM. Nicotine, myosmine, and N-nitrosonornicotine were used for selectivity testing, and the calculated selectivity factor of cotinine to nicotine, myosmine, and N-nitrosonornicotine was 1.56, 2.69, and 2.05, respectively. Overall, the MIP paper scaffold is promising for simple onsite sampling of cotinine and can be used to assess tobacco smoke exposure.

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A New Simple and Fast Method for Determination of Cobalt in Vitamin B12 and Water Samples Using Dispersive Liquid-Liquid Microextraction and Digital Image Analysis

Lemos

Souza

Santos

et al. 2020

Water Air Soil Pollut

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Use of fiberglass support in the application of dried-spot technique with dispersion liquid-liquid microextraction for the determination of Co, Cr, Cu, Ni and Pb by Energy Dispersive X-Ray Fluorescence Spectrometry

Cited by 17 publications

References 42 publications

Flame atomic absorption spectrometric determination of multi element in apricot and soil samples after wet and microwave digestion method

Flame atomic absorption spectrometric determination of multi element in apricot and soil samples after wet and microwave digestion method

Exploring Matrix Effects on Binding Properties and Characterization of Cotinine Molecularly Imprinted Polymer on Paper-Based Scaffold

A New Simple and Fast Method for Determination of Cobalt in Vitamin B12 and Water Samples Using Dispersive Liquid-Liquid Microextraction and Digital Image Analysis

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