“…Of permanent interest was the reliable configuration of the bismuth film-plated glassy carbon electrode ("BiF-GCE"; e.g. [127,133,138,142,144,160,162]), other reports offered the newly proposed combinations ("BiFPtE" [163] and "BiF-CuE" [132]), or even the alreadydescribed arrangements such as "BiBE" [130] (with its mixed variant, "Bi/Au-BE" [131]), bismuth film-plated and bismuth powder-modified carbon paste electrodes ("BiFCPEs" and "Bi-CPEs" [147,164], including a new zeolitedoped configuration [143]), Bi-nanopowder-containing boron-doped diamond or thick-film graphite electrode, Bi(n)-BDDE [130] and Bi(n)-TFGE [149], respectively, plus some innovative miniaturized constructions [148,161]. Together with routine electroanalytical testing and application, in focus were the bismuth microlayers [128 -130, 132, 148, 151], when using UV-vis reflectant spectroelectrochemistry (SPEC [138]), or electrochemical impedance spectroscopy (EIS [144]).…”