Elucidating metal ions-regulated flavour formation mechanism in the aging process of Chinese distilled spirits (Baijiu) by electrochemistry, ICP-MS/OES, and UPLC-Q-Orbitrap-MS/MS

2021 ◽  
Author(s):  
Qing Zheng ◽  
Yaru Hu ◽  
Ayuan Xiong ◽  
Ying Su ◽  
Zihao Wang ◽  
...  
Keyword(s):  
Metal Ions ◽  
Formation Mechanism ◽  
Aging Process ◽  
Distilled Spirits ◽  
Icp Ms ◽  
Flavour Formation ◽  
Orbitrap Ms

Elucidating the organometallic interactions in Baijiu will promote a deeper understanding of the flavour formation mechanism during Baijiu aging. However, the organometallic interactions during aging is difficult to explore because...

scholarly journals Interlaboratory studies for the analysis of metal ions in solution by isotope dillution/ICP-MS.

1998 ◽  
Vol 47 (4) ◽  
pp. 239-247 ◽  
Author(s):  
Naoko NONOSE ◽  
Akiharu HIOKI ◽  
Masayasu KURAHASHI ◽  
Masaaki KUBOTA
Keyword(s):  
Metal Ions ◽  
Interlaboratory Studies ◽  
Icp Ms

Development of an effervescent tablet microextraction method using NiFe2O4-based magnetic nanoparticles for preconcentration/extraction of heavy metals prior to ICP-MS analysis of seafood

2019 ◽  
Vol 34 (3) ◽  
pp. 598-606 ◽  
Author(s):  
Peipei Zhou ◽  
Rongjie Zheng ◽  
Wei Zhang ◽  
Wei Liu ◽  
Yanyan Li ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Magnetic Nanoparticles ◽  
Metal Ions ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Ms Analysis ◽  
Icp Ms ◽  
Effervescent Tablet

A novel magnetic NiFe2O4-based effervescent tablet-assisted dispersive solid-phase microextraction (MNET-DSPM) was developed for extraction of metal ions prior to ICP-MS.

Influence of Carbon Concentrations in Reducing Co and Cr Ions Release in Cobalt Based Implant: A Preliminary Report

2013 ◽  
Vol 845 ◽  
pp. 462-466 ◽  
Author(s):  
H. Mas-Ayu ◽  
S. Izman ◽  
Mohammed Rafiq Abdul Kadir ◽  
Rosdi Daud ◽  
A. Shah ◽  
...  
Keyword(s):  
Metal Ions ◽  
Oxide Layer ◽  
Inductively Coupled Plasma ◽  
Atmospheric Condition ◽  
Immersion Test ◽  
Low Carbon ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Carbon Concentrations

The releases of harmful ions from cobalt based alloy to host tissues have raised significant health concerns. Carbon contents in this alloy may influence ions release but has yet investigated. It is hypothesized that carbon contents in this alloy will help the formation of oxide layer during thermal oxidation process and hence reducing the release of Co/Cr ions after implantation. In this study, Co-Cr-Mo alloy with carbon concentrations of 0.03% and 0.24% were oxidized at 1050°C for 3 hours under atmospheric condition. The oxidized substrates were characterized under FESEM and subjected to circulating immersion test in simulated body fluid (SBF) for 21 days. Metal ions release was measured using inductively coupled plasma-mass spectrometry (ICP-MS) at day 0, 7, 14 and 21. Oxidized high carbon samples show denser and a more uniform oxide layer than samples with low carbon contents. It is found that compact oxide structure promotes less metal ions release during immersion.

scholarly journals Supplemental Material: Age, material source, and formation mechanism of bedding-parallel calcite beef veins: Case from the mature Eocene lacustrineshales in the Biyang Sag, Nanxiang Basin, China

2021 ◽  
Author(s):  
Ao Su ◽  
et al.
Keyword(s):  
Formation Mechanism ◽  
Material Source ◽  
Vein Density ◽  
Box Plots ◽  
Icp Ms

Figure S1: Correlations of vein density vs. TOC, calcite, and dolomite contents of host shales; Figure S2: The box plots of calcite contents in shale samples with and without beef veins; Table S1: LA-MC-ICP-MS carbonate U-Pb dating data.

Fabrication of light-responsive polymer nanocomposite containing spiropyran as sensor for reversible recognition of metal ions

2022 ◽  
Author(s):  
Fakhri Arjmand ◽  
Zahra Mohamadnia
Keyword(s):  
Metal Ions ◽  
Polymer Nanocomposite ◽  
Icp Ms ◽  
Responsive Polymer

Recognition of metal ions using different methods such as HPLC, ICP-MS, ICP-AES, etc. has many limitations including expensiveness, time-consuming, and the need for advanced equipment. These limitations were extensively solved...

scholarly journals Speciation Analysis of Selenium in Candida utilis Yeast Cells Using HPLC-ICP-MS and UHPLC-ESI-Orbitrap MS Techniques

2018 ◽  
Vol 8 (11) ◽  
pp. 2050 ◽  
Author(s):  
Marek Kieliszek ◽  
Stanisław Błażejak
Keyword(s):  
Candida Utilis ◽  
Speciation Analysis ◽  
Yeast Cells ◽  
Future Research ◽  
Selenium Compounds ◽  
Icp Ms ◽  
Inorganic Selenium ◽  
Low Mass ◽  
Living Organisms ◽  
Orbitrap Ms

Selenium plays a key role in the proper metabolism of living organisms. The search for new selenium compounds opens up new possibilities for understanding selenometabolome in yeast cells. This study was aimed at the identification of compounds containing selenium in the feed yeasts Candida utilis ATCC 9950. Yeast biomass was kept in aqueous solutions enriched with inorganic selenium (20 mg·L−1) for 24 h. Speciation analysis of the element was performed using the HPLC-ICP-MS and UHPLC-ESI-Orbitrap MS techniques. The obtained selenium value in the yeast was 629 μg·g−1, while the selenomethionine value was 31.57 μg·g−1. The UHPLC-ESI-Orbitrap MS analysis conducted allowed for the identification of six selenium compounds: dehydro-selenomethionine-oxide, selenomethionine, selenomethionine-NH3, a Se-S conjugate of selenoglutathione-cysteine, methylthioselenoglutathione, and 2,3-DHP-selenocysteine-cysteine. In order to explain the structure of selenium compounds, the selected ions were subjected to fragmentation. The selenium compounds obtained with a low mass play a significant role in the metabolism of the compound. However, the bioavailability of such components and their properties have not been fully understood. The number of signals indicating the presence of selenium compounds obtained using the UHPLC-ESI-Orbitrap MS method was characterized by higher sensitivity than when using the HPLC-ICP-MS method. The obtained results will expand upon knowledge about the biotransformation of selenium in eukaryotic yeast cells. Future research should focus on understanding the entire selenium metabolism in cells and on the search for new transformation pathways for this element. This opens up new possibilities for obtaining functional food, rich in easily absorbable selenium sources, and constituting an alternative to dietary supplements based on this compound found primarily in inorganic form.

Sign in / Sign up

Export Citation Format

Share Document