Chromium speciation using task specific ionic liquid/aqueous phase biphasic system combined with flame atomic absorption spectrometry

Advances of Ionic Liquids in Analytical Chemistry

“…Therefore, Sadeghi et al designed an IL-ABS using the [C 8 MIM + ][salicylate − ] TSIL, sodium acetate, and Triton X-114 to selectively extract Cr 3+ while leaving the mutagenic Cr 4+ in the aqueous layer. 96 The IL-ABS approach was able to extract 11.1% of Cr 4+ and 92.5% of Cr 3+ from aqueous solution.…”

“…Speciation of metal ions is of importance as detection methods such as EAAS and inductively coupled plasma-mass spectrometry (ICPMS) cannot differentiate between oxidation states. Therefore, Sadeghi et al designed an IL-ABS using the [C 8 MIM + ]­[salicylate – ] TSIL, sodium acetate, and Triton X-114 to selectively extract Cr 3+ while leaving the mutagenic Cr 4+ in the aqueous layer . The IL-ABS approach was able to extract 11.1% of Cr 4+ and 92.5% of Cr 3+ from aqueous solution.…”

Green sample preparation strategies for organic/inorganic compounds in environmental samples

“…Recently 1-alkyl-3-methylimidazolium based ionic liquids combined with salicylate or thiosalicylate anions were used to form a stable ionic liquids (IL)/aqueous biphasic. It was found that the 1-octyl-3-methylimidazoliumsalicylate was selective to extract Cr(III) [63]. Another alternative was reported by Wang et al [64], introducing a magnetic IL to an effervescent tablet for separation of As (V), by chelation with ammonium molybdate.…”

Carbonization of Human Fingernails: Toward the Sustainable Production of Multifunctional Nitrogen and Sulfur Codoped Carbon Nanodots with Highly Luminescent Probing and Cell Proliferative/Migration Properties

“…Even though trivalent chromium (Cr­(III)) is a rather harmless, essential trace element species for physiological body functions (e.g., glucose tolerance), hexavalent chromium (Cr­(VI)) is highly toxic, carcinogenic, and linked with numerous health issues. − In order to assess real-life effects of chromium, speciation analysis is deemed necessary and new methods that are able to discriminate between the chromium species have been developed. , Herein, we describe the utilization of multifunctional CNDs produced from human fingernails via a one-step simple carbonization procedure. The strong photoluminescence properties of the synthesized CNDs make them suitable for the sensitive probing of Cr­(VI), its discrimination from Cr­(III), and the efficient imaging of cells.…”

“…19−21 In order to assess real-life effects of chromium, speciation analysis is deemed necessary and new methods that are able to discriminate between the chromium species have been developed. 22,23 Herein, we describe the utilization of multifunctional CNDs produced from human fingernails via a one-step simple carbonization procedure. The strong photoluminescence properties of the synthesized CNDs make them suitable for the sensitive probing of Cr(VI), its discrimination from Cr(III), and the efficient imaging of cells.…”