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...
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.
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.
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...
This work reports a facile and inexpensive preparation of porous silica monolithsviaanin situsol–gel method using potassium silicate precursors in the presence of porosity controlling and drying regulatory additives.
Interlaboratory studies for the analysis of metal ions in solution by isotope dillution/ICP-MS.
