Accurate quantification of total chromium and its speciation form Cr(VI) in water by ICP-DRC-IDMS and HPLC/ICP-DRC-IDMS

Markiewicz, Barbara; Komorowicz, Izabela; Barałkiewicz, Danuta

doi:10.1016/j.talanta.2016.02.049

Cited by 24 publications

(8 citation statements)

References 45 publications

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“…Taking into account the current number of anthropogenic sources of pollution, attention to the measurement of chromium(VI) in water samples in trace levels is particularly important. 6 A variety of analytical methods have previously been used for Cr(VI) determination, including voltammetry, [7][8][9][10][11][12] luminescence and chemiluminescence, [13][14][15][16][17] ame and electrothermal AAS, [18][19][20][21][22][23][24][25] chromatography, [26][27][28][29][30][31] UV-vis spectrophotometry. [32][33][34][35][36][37][38][39][40][41] Each of these techniques offers both advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Vortex-assisted liquid–liquid microextraction and indirect spectrophotometric determination of chromium(vi)

Bazeľ

Riabukhina

2018

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Vortex-assisted liquid–liquid microextraction and indirect spectrophotometric determination of chromium(vi)

Bazeľ

Riabukhina

2018

RSC Adv.

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“…Chromium (III) is a macronutrient essential for health and is known to regulate carbohydrates, lipids, and proteins [2]. A shortage of this nutrient can lead to heart conditions, disruption of metabolisms, or diabetes [3]. However, excess chromium(III) can cause adverse health effects such as skin rashes [3].…”

Section: Introductionmentioning

confidence: 99%

“…A shortage of this nutrient can lead to heart conditions, disruption of metabolisms, or diabetes [3]. However, excess chromium(III) can cause adverse health effects such as skin rashes [3]. Chromium(VI) on the other hand is strongly toxic due to its high oxidation potential and ability to penetrate biological membranes [3].…”

Section: Introductionmentioning

confidence: 99%

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Sorption of Cr(III) and Cr(VI) to K 2 Mn 4 O 9 nanomaterial a study of the effect of pH, time, temperature and interferences

Valle

González

Schulz

et al. 2017

Microchemical Journal

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A Rancieite type material (K2Mn4O9) nanomaterial was synthesized and tested for the removal of chromium (III) and chromium (VI) from aqueous solutions. The synthesized nanomaterial was characterized using powder XRD and SEM. XRD showed weak diffraction peaks at only at the angles associated with K2Mn4O9. The SEM corroborated that the nanoparticles were present; however, the nanoparticles were clustered into larger aggregates. Batch studies were performed to determine the optimum pH, capacity, time dependency, interferences, and the thermodynamics of the binding. The optimum pH for the binding of Cr(III) and Cr(VI) were determined to be pH 5 and pH 2, respectively. Isotherm studies were performed at temperatures of 4 , 25 , and 45 for Cr(III) and Cr(VI) and showed binding capacities of 21.7 mg/g, 36.5 mg/g, 41.8 mg/g for Cr(III). The Cr(VI) binding capacities were 4.22 mg/g, 4.08 mg/g, and 3.25 mg/g at the respective temperatures. The thermodynamic studies showed that the binding processes for the reactions were spontaneous and endothermic, with a ΔH was 17.54 kJ/mol for Cr(III) and 6.05 kJ/mol for Cr(VI). The of sorption for Cr(III) were determined to be −3.88 kJ/mol, −5.83 kJ/mol and −7.03 kJ/mol at the aforementioned temperatures. The ΔG values for the Cr(VI) sorption were determined to be −4.89 kJ/mol, −5.64 kJ/mol, and −6.05 kJ/mol. In addition, the ΔS values for Cr(III) and Cr(VI) were determined to be 77.92 J/mol and 39.49 J/mol, respectively. The thermodynamics indicate that the binding of Cr(III) and Cr(VI) is spontaneous and endothermic.

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“…However, there are at least three reports of Cr speciation in waters by HPLC with ICP-MS detection. Markiewicz et al107 measured total Cr in two CRM waters, but were unable to detect Cr VI in either of these; nor could they detect either species in five drinking water samples. Results are presented for the development of three methods, two of which involve ID with 53Cr VI .…”

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confidence: 96%

Atomic Spectrometry Update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2018

J. Anal. At. Spectrom.

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This is the ninth Atomic Spectrometry Update (ASU) to focus on advances in elemental speciation and covers a period of approximately 12 months from December 2015. This ASU review deals with all aspects of the analytical atomic spectrometry speciation methods developed for: the determination of oxidation states; organometallic compounds; coordination compounds; metal and heteroatom-containing biomolecules, including metalloproteins, proteins, peptides and amino acids; and the use of metal-tagging to facilitate detection via atomic spectrometry. The review does not cover fractionation, which is sometimes termed operationally defined speciation. As with all ASU reviews the focus of the research reviewed includes those methods that incorporate atomic spectrometry as the measurement technique. However, because speciation analysis is inherently focused on the relationship between the metal(loid) atom and the organic moiety it is bound to, or incorporated within, atomic spectrometry alone cannot be the sole analytical approach of interest. For this reason molecular detection techniques are also included where they have provided a complementary approach to speciation analysis. As in previous years, As and Se speciation continues to dominate the current literature, with reports of the speciation of Cr and Hg also increasing, and there are an ever rising number of publications concerning the analysis of 'biomolecules'. Whilst most of this work is still the preserve of the research field some methods are now approaching the robustness and rapidity for use in the clinical setting.

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Accurate quantification of total chromium and its speciation form Cr(VI) in water by ICP-DRC-IDMS and HPLC/ICP-DRC-IDMS

Cited by 24 publications

References 45 publications

Vortex-assisted liquid–liquid microextraction and indirect spectrophotometric determination of chromium(vi)

Vortex-assisted liquid–liquid microextraction and indirect spectrophotometric determination of chromium(vi)

Sorption of Cr(III) and Cr(VI) to K 2 Mn 4 O 9 nanomaterial a study of the effect of pH, time, temperature and interferences

Atomic Spectrometry Update: review of advances in elemental speciation

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