Qualitative imaging of elemental spatial distribution in stalagmites through laser ablation inductively coupled plasma mass spectrometry analysis DOI Open Access
Danielle da Silva Francischini,

Renata S. Amais,

Nicolás M. Stríkis

et al.

Brazilian Journal of Analytical Chemistry, Journal Year: 2022, Volume and Issue: unknown

Published: July 11, 2022

The laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) technique is considered versatile for multi-elemental analysis and imaging because it easy to handle, compatible with different types of solid samples, requires minimal sample preparation, provides high spatial resolution sensitivity. One the challenges obtain accurate precise information elements distribution in sample, so optimization (LA) parameters essential. In this context, study aimed optimize LA direct speleothem samples. Laser intensity, frequency, spot diameter were evaluated through multivariate experimental design multi-response data, influence scan speed use 44Ca as an internal standard (IS) qualitative image 66Zn, 137Ba, 55Mn, 57Fe, 88Sr, 60Ni, 26Mg also evaluated. revealed positive interactions between evaluated, i.e., greater diameter, analyte signal and, thus Therefore, 90% 20 Hz repetition rate, 100 µm selected. evaluation, images obtained 40 s-1 very similar all isotopes. IS did not impact images. can provide important about formation paleoclimate changes.

Language: Английский

Microscopic techniques as means for the determination of microplastics and nanoplastics in the aquatic environment: A concise review DOI Creative Commons

Dimitrios Kalaronis,

Nina Maria Ainali, Εleni Εvgenidou

et al.

Green Analytical Chemistry, Journal Year: 2022, Volume and Issue: 3, P. 100036 - 100036

Published: Oct. 1, 2022

The global concern about the fate of plastic particles, including microplastics (MPs) and nanoplastics (NPs), in aquatic ecosystems has undoubtedly grown as million tons polymeric fragments are released oceans an annual basis. ability these items being transferred into several combination with their to absorb organic or inorganic pollutants onto surface, raises need for a sufficient monitoring MPs/NPs complex environmental matrices. In frame these, microscopic techniques considered ideal tools critically assist other analytical due fast-screening character even complete detailed analysis particles some cases. light above, present review discusses group used isolated from samples most likely be important future actions, emphasizing on operating fundamentals, merits limitations. Moreover, highlighted green particles/fragments minimum reagents, solvents, energy required implementation such kind analysis. Finally, effective spectroscopic ones also presented.

Language: Английский

Citations

47
A new green approach for the reduction of consumed solvents and simultaneous quality control analysis of several pharmaceuticals using a fast and economic RP-HPLC method; a case study for a mixture of piracetam, ketoprofen and omeprazole drugs DOI Creative Commons
Mohamed A. Abdelgawad, Eglal A. Abdelaleem, Mohammed Gamal

et al.

RSC Advances, Journal Year: 2022, Volume and Issue: 12(25), P. 16301 - 16309

Published: Jan. 1, 2022

One of the main aims green analytical chemistry (GAC) is reduction solvents and chemicals consumed. Recycling mobile phase in chromatographic techniques provides an efficient way to implement GAC principles. However, this not easy job, particularly case gradient mode. Analysis multi-pharmaceuticals for same manufacturer using one system dramatically reduces consumed solvents, time, cost pharmaceuticals analysis quality control laboratories. This work attempt reduce effort needed several dosage forms produced by manufacturer. Our novel RP-HPLC method able separate quantify a tertiary mixture piracetam, ketoprofen omeprazole manufacturers. The analyst can easily three drugs run elution mode methanol water (from 50% 85% ten minutes) with flow rate 1.5 mL min-1 on non-polar C18 column. Suitable dilutions were done working solution mixed pharmaceutical formulations prior analysis. procedure will save time money during calibration ranges are (5-25), (5-25) (3-20) μg mL-1 studied drugs. International Council Harmonization (ICH) procedures followed validation process results evaluated comparison official HPLC methods, where no noteworthy differences found. profile pictograms AGREE Green Analytical Procedure Index (GAPI) approaches proved eco-friendly character simultaneous quantitative Stimulan® Hyposec® capsules, Ketolgin® tablets from Amoun Pharmaceutical Company, Egypt, be accomplished via method. Also, Memoral® ampoules, Topfam® tablets, Gastroloc® capsules Sigma Industries, could analyzed simultaneously. Omez® Ketogesic® Pharaonia Pharmaceuticals, determined simultaneously too. Applying method, significant total assured as required amount solvent noticeably decreased when performing multi-analyses single component

Language: Английский

Citations

27
Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials DOI
Simon Carter, Robert Clough, Andrew Fisher

et al.

Journal of Analytical Atomic Spectrometry, Journal Year: 2022, Volume and Issue: 37(11), P. 2207 - 2281

Published: Jan. 1, 2022

This review covers advances in the analysis of advanced materials, metals, fuels and lubricants, nanostructures, ceramics, refractories, organic inorganic chemicals, catalysts nuclear materials by a range techniques including X-ray, ICP, LIBS, mass spectrometry, synchrotron-based techniques, plus non-destructive ablation surface techniques.

Language: Английский

Citations

24
Exploring Rare Earth Elements in complex microscopic mineral phases: Inputs from μLIBS imaging DOI
C. Fabre,

Lucas Marulier,

Behzad Monfaredi

et al.

Spectrochimica Acta Part B Atomic Spectroscopy, Journal Year: 2024, Volume and Issue: 216, P. 106954 - 106954

Published: May 23, 2024

Language: Английский

Citations

6
Recent advances in chemical composition imaging operation based on laser-induced breakdown spectroscopy DOI Creative Commons
Shangyong Zhao,

Yuchen Zhao,

Yujia Dai

et al.

Journal of Analytical Atomic Spectrometry, Journal Year: 2025, Volume and Issue: 40(3), P. 665 - 678

Published: Jan. 1, 2025

This review provides a comparatively comprehensive and systematic introduction to recent developments in chemical composition imaging based on LIBS, with focus the principle, operation, development.

Language: Английский

Citations

0
Evaluating solid standards for LA-ICP-MS quantitative imaging of organisms with calcareous skeletons: accuracy, homogeneity, and laser wavelength effects DOI
Ewelina Pollak-Kowa, Anna Telk, Marcin Wieczorek

et al.

The Analyst, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

High accuracy can be achieved using matrix-matched standards and high precision is ensured by averaging signals from lines randomly located on the surface of standard.

Language: Английский

Citations

0
From DFT investigations of oxygen-implanted molybdenum disulfide to temperature-induced stabilization of MoS2/MoO3 heterostructure DOI Creative Commons
Sylwia Kozdra,

Adrianna Wójcik,

Tamal Das

et al.

Applied Surface Science, Journal Year: 2023, Volume and Issue: 631, P. 157547 - 157547

Published: May 18, 2023

In this work, we study the mechanism of implantation process two-dimensional molybdenum disulfide. We proposed oxidation scheme and investigated changes in geometry MoS2 layer, as well HOMO LUMO orbitals location using Density Functional Theory technique. found that oxygen was incorporated into structure MoS2/MoO3 heterostructure created. The effect presence Secondary Ion Mass Spectrometry technique with atomic-resolution depth profiles. trioxide confirmed Raman spectroscopy. successful allowed to obtain a stable conductive/insulating promising properties.

Language: Английский

Citations

9
Electrochemical generation of unconventional cyanide vacancies to boost the catalytic performance of Co-Prussian Blue on oxygen evolution reaction under mild conditions DOI
Rafael L. Germscheidt,

Ana Araújo,

João Carlos O. Souza

et al.

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 146327 - 146327

Published: April 1, 2025

Language: Английский

Citations

0
The role of silver nanoparticles effects in the homeostasis of metals in soybean cultivation through qualitative and quantitative laser ablation bioimaging DOI
Katherine Chacón‐Madrid, Danielle da Silva Francischini, Marco Aurélio Zezzi Arruda

et al.

Journal of Trace Elements in Medicine and Biology, Journal Year: 2023, Volume and Issue: 79, P. 127207 - 127207

Published: May 18, 2023

Language: Английский

Citations

7
Recent Developments and Application of Mass Spectrometry Imaging in N-Glycosylation Studies: An Overview DOI Creative Commons
Bharath Sampath Kumar

Mass Spectrometry, Journal Year: 2024, Volume and Issue: 13(1), P. A0142 - A0142

Published: Feb. 9, 2024

Among the most typical posttranslational modifications is glycosylation, which often involves covalent binding of an oligosaccharide (glycan) to either asparagine (N-linked) or a serine/threonine (O-linked) residue. Studies imply that N-glycan portion glycoprotein could serve as particular disease biomarker rather than protein itself because N-linked glycans have been widely recognized evolve with advancement tumors and other diseases. N-glycans found on sites especially significant. Since play clearly defined functions in folding proteins, cellular transport, transmission signals, them linked several illnesses. However, these N-glycans' production not template driven, they substantial morphological range, rendering it difficult distinguish species are relevant biology medicine using standard techniques. Mass spectrometry (MS) techniques emerged effective analytical tools for investigating role glycosylation health illness. This due developments MS equipment, data collection, sample handling By recording spatial dimension glycan's distribution

Language: Английский

Citations

2