Evaluation of hydrodynamic chromatography coupled to inductively coupled plasma mass spectrometry for speciation of dissolved and nanoparticulate gold and silver

Jiménez, María Soledad; Bakir, Mariam; Isábal, Daniel; Gómez, Manuel; Pérez-Arantegui, Josefina; Castillo, Juan R.; Laborda, Francisco

doi:10.1007/s00216-020-03132-3

Cited by 19 publications

(11 citation statements)

References 24 publications

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“…Substantial research efforts have been dedicated to establishing reliable methods for the selective analysis of n-Ag. Typically, size-based separation techniques, such as field-flow fraction, − size exclusion chromatography, − capillary electrophoresis, , and hydrodynamic chromatography , with inductively coupled plasma mass spectrometry (ICP-MS), have been employed to address this issue. Due to their insufficient detection capability, however, these methods are often difficult to meet the requirements for the determination of n-Ag in real environmental samples at ng/L levels .…”

Section: Introductionmentioning

confidence: 99%

Simple Extraction and Ultrasensitive Determination of Nanoscale Silver from Environmental Waters

Gao

Deng

Liu

et al. 2022

ACS Sustainable Chem. Eng.

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Silver speciation is an important step for any program aiming to provide precise insights into the chemical transformation and evaluate the biological toxicity. Nonetheless, reliable speciation by easy-to-use and sensitive analytical approaches is still challenging for silver in natural waters at environmentally relevant levels. Herein, this study established a simple, fast, and robust analysis approach combining protein corona-mediated extraction with inductively coupled plasma mass spectrometry analysis to selectively separate nanoscale silver (n-Ag) from waters and sensitively quantify its mass concentration. Bovine serum albumin (BSA) was selected as the extractant to form protein corona on the n-Ag surface, followed by the selective extraction of n-Ag with addition of Na2S2O3. After the optimization of the extraction solvent concentration (i.e., 50 mg/L BSA), pH (i.e., 4.0), extraction time (i.e., 5 min), inorganic salt concentration (i.e., 1% m/v NaNO3), and incubation temperature and time (i.e., 80 °C and 45 min), acceptable recoveries of the spiked n-Ag (67.3–83.1%) were achieved in three environmental samples with a detection limit of 0.95 ng/L. The interference from natural humic acid, salinity, and other particles could be efficiently negligible. Transmission electron microscopy analysis showed that no size and/or shape changes were observed after extraction, making this approach attractive in practical application. Compared with the conventional cloud point extraction method, this new method exhibited superior selectivity to n-Ag at environmentally relevant levels in waters. Consequently, our work offers a promising way to highly enrich and sensitively quantify n-Ag in complex water matrices, which will allow the improvements to track the nanoparticles in the environment, promote the research on the environmental behaviors of n-Ag, and better evaluate its risk to the environment and human health.

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Section: Introductionmentioning

confidence: 99%

Simple Extraction and Ultrasensitive Determination of Nanoscale Silver from Environmental Waters

Gao

Deng

Liu

et al. 2022

ACS Sustainable Chem. Eng.

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“…HDC separations were performed with a PL-PSDA Type 1 column (Agilent Technologies, Germany) with a nominal separation range of 5–300 nm, a length of 80 cm and an internal diameter of 7.5 mm. The sample flow rate used was 1.6 mL min −1 , and the mobile phase used was 0.45 mM of SDS and 1 mM of PA, optimized in previous studies [ 37 ]. It was coupled to a Perkin Elmer Sciex model ELAN DRC-e ICP mass spectrometer (Toronto, Canada) and used as a detector.…”

Section: Methodsmentioning

confidence: 99%

“…The experimental conditions of the HDC and the ICP-MS are shown in table T 1 in SI. The quantification of the peaks of the chromatograms is reported by Jiménez et al [ 37 ].…”

Section: Methodsmentioning

confidence: 99%

Comparative study of extraction methods of silver species from faeces of animals fed with silver-based nanomaterials

et al. 2023

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Extractions methods based on ultrapure water, tetramethylammonium hydroxide (TMAH), and tetrasodium pyrophosphate (TSPP) were applied to faeces collected from two in vivo experiments of pigs and chickens fed with a silver-based nanomaterial to study the fate and speciation of silver. For TMAH extraction, cysteine and CaCl2 were used to evaluate their stabilization effect on the silver forms. The analytical techniques single-particle inductively coupled plasma mass spectrometry (SP-ICP-MS), hydrodynamic chromatography hyphenated to ICP-MS (HDC-ICP-MS) and asymmetric flow field flow fractionation coupled to ICP-MS (AF4-ICP-MS) were applied to the simultaneous detection of particulate and dissolved silver. Results have shown that water extraction was a suitable option to assess the environmental release of silver, with percentages of 3 and 9% for faeces of pigs and chickens, respectively. The use of TMAH extraction combined with SP-ICP-MS analysis was useful to characterize Ag-containing particles (less than 1%). Both stabilizers, cysteine and CaCl2, have a similar effect on silver nanoparticle preservation for chicken faeces, whereas cysteine-Triton was better for pig samples. In any case, silver extraction efficiency with TMAH was low (39–42%) for both types of faeces due to a matrix effect. TSPP followed by ICP-MS enabled the fractionation of the silver in the faeces, with silver sulphide (41%) and ionic silver (62%) being the most abundant fractions. Graphical Abstract

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“…A study which reports on the coupling of hydrodynamic chromatography (HC) with ICP-MS for the simultaneous determination of dissolved and nanoparticulate species of Au and Ag has been published this year. 106 The optimal mobile phase for the separation of the Ag species was found to be 0.45 mmol L À1 SDS and varying amounts of penicillamine owing at 1.6 mL min À1 with a run time of 11 minutes. This allowed the quantitative recovery of ionic Ag and Au NPs up to 50 nm in diameter and the resolution achieved between ionic Ag and 10 nm Ag NPs was between 0.31 and 0.93 depending on the mobile phase composition, with an LOD of 0.75 mg L À1 .…”

Section: Silvermentioning

confidence: 99%

Atomic Spectrometry Update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2022

J. Anal. At. Spectrom.

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Evaluation of hydrodynamic chromatography coupled to inductively coupled plasma mass spectrometry for speciation of dissolved and nanoparticulate gold and silver

Cited by 19 publications

References 24 publications

Simple Extraction and Ultrasensitive Determination of Nanoscale Silver from Environmental Waters

Simple Extraction and Ultrasensitive Determination of Nanoscale Silver from Environmental Waters

Comparative study of extraction methods of silver species from faeces of animals fed with silver-based nanomaterials

Atomic Spectrometry Update: review of advances in elemental speciation

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