An alkaline dissolution-based method using tetramethylammonium hydroxide for metals determination in cow milk samples

Analytical performance of Compton/Rayleigh signal ratio by total reflection X‐ray fluorescence (TXRF): A potential methodological tool for sample differentiation

“…Additionally, a cow skimmed powdered milk certified reference material for trace metals (Skimmed Milk powder ERM®‐BD150 from Sigma‐Aldrich) was used to assess the method's performance. For natural samples, potassium, calcium, zinc, and iron were measured by flame atomic absorption spectrometry, employing a modified procedure 30 . Likewise, total fat content was determined by the Gerber method 31 .…”

The application of tetramethylammonium hydroxide for generating atmospheric pressure glow discharge in contact with alkalized flowing liquid cathode solutions – evaluation of the analytical performance

“…30,35–38 As compared to the use of acids, the solubilization of sample components with TMAH is simpler and faster than that with acids, usually efficient at room temperature, minimizing the risk of volatile analyte losses, and requires only small portions of the reagent. 30,35…”

“…34 Apart from that, it is also applied for the decomposition of samples of different matrices, before their analysis with the aid of conventional large-scale instrumentation. 30,[35][36][37][38] As compared to the use of acids, the solubilization of sample components with TMAH is simpler and faster than that with acids, usually efficient at room temperature, minimizing the risk of volatile analyte losses, and requires only small portions of the reagent. 30,35 To the best of our knowledge, there is no comprehensive study focusing on the generation of FLC-APGD (and other similar systems such as ELCAD or SCGD) in contact with alkalized solutions.…”

“…30,[35][36][37][38] As compared to the use of acids, the solubilization of sample components with TMAH is simpler and faster than that with acids, usually efficient at room temperature, minimizing the risk of volatile analyte losses, and requires only small portions of the reagent. 30,35 To the best of our knowledge, there is no comprehensive study focusing on the generation of FLC-APGD (and other similar systems such as ELCAD or SCGD) in contact with alkalized solutions. Therefore, the aim of this work was to replace HNO 3 , extensively used for the acidication of FLC solutions, with TMAH and study the FLC-APGD system in reference to its spectroscopic behavior and analytical performance.…”