Simple test kit based on colorimetry for quantification of magnesium content in natural rubber latex by miniaturized complexometric titration without using masking agent

Spectrofluorimetric determination of magnesium ions in water, ampoule, and suspension samples using a fluorescent azothiazol‐benzenesulfonamide derivative

“…The quantitative detection of magnesium ions is an important need that requires quick, sensitive, selective, and reliable methodologies. Several methodologies have been published for magnesium detection in different environmental samples, these includes X-ray atomic spectrometric methods, [5] electrochemical methodologies, [6] atomic absorption spectroscopic methods, [7] flame atomic absorption spectrometric methods, [8] ion-selective electrode methods, [9] derivative spectrophotometric methods, [10] high performance liquid chromatography (HPLC), [11] nuclear magnetic resonance (NMR), [12] colorimetric methods, [13] graphite furnace atomic absorption spectrometric methods [14] and fluorescence methods. [15] In addition a few methodologies have been published for the determination of magnesium in different pharmaceutical samples, for example electrochemical methodologies, [16] atomic absorption spectroscopic methods, [17,18] flame atomic absorption spectrometric methods, [19,20] ion-selective electrode methods, [21] derivative spectrophotometric methods, [10] HPLC, [22] and colorimetric methods.…”

Development and standardization of test systems based on filter paper and modified with vanillin reagent

“…It is widely known about test kits usage for pollution monitoring, such as test kits for semiquantitative analysis of arsenic ions in drinking water [4]. There are modern developments of a test kits that allow the detection of concomitant substances and impurities in complex organic compounds, in particular the detection of Mg 2+ in latex of natural rubber [5]. Due to its properties, paper matrices can be modified correspondingly [6] for various analytical problems solving that are posed to test-kits.…”