Determination of bismuth and zinc in pharmaceuticals by first derivative UV–Visible spectrophotometry

Electrochemical and thermodynamic study of the electroreduction of Bi(III) ions in the presence of cysteine in solutions of different water activity

“…In medicine, bismuth compounds are used due to their disinfecting, astringent and anti-inflammatory action [9][10][11]. All lethal intoxications involving bismuth are attributed to therapeutic uses of bismuth compounds, mostly injections or long-lasting courses of treatment [12].…”

Design of an Optical Sensor for Determination of Bismuth

“…1 Also bismuth-containing pharmaceuticals have been used for various medical purposes, especially for a wide range of gastrointestinal tract disorders ranging from constipation to diarrhea, particularly for peptic gastritis and ulceration. 2,3 The exact mechanism of its action is yet unknown, but its therapeutic activity might result from mucosa-protective properties, and from inhibition of colonic bacteria acting on fermentable food residues. 4 Ranitidine bismuth citrate (RBC) is an antimicrobial agent that was developed for the purpose of treating Helicobacter pylori (H. pylori) infection.…”

Simultaneous Determination of the Textile Dyes in Industrial Effluents by First-Order Derivative Spectrophotometry

“…12 The zero-crossing technique allows: the separation of signal overlap, elimination of background signals caused by the presence of the others compounds, and the quantification of the one or more analytes without prior separation and purification. 12,13 Several studies have been conducted using the derivative spectrophotometric methods: first-order, [14][15][16][17][18][19] 20 and fourth-order; 21 the results have been applied in the determination of food dyes, fungicide, pharmaceuticals and metals. Most methods are devoted to the determination of one main compound in the presence of matrix or the simultaneous determination of two analytes in their binary mixtures.…”