The analytical methods discussed in this review have been selected from the literature which has become available to the reviewers from Dec 1979 through Nov 1981.Several topics are not listed under the classifications which follow but are of general interest. A new book on the determination of elements and groups has been published (7). Absorption spectroelectrochemistry may be useful for analytical procedures involving oxidation-reduction systems.Compounds which have been studied include 4-amino-4'methoxydiphenylamine, tris(5-nitro-l,10-phenanthroline)iron(II) perchlorate, and 4,4'-diamino-3,3,-dimethylbiphenyl (102). Room-temperature phosphorescence gives promise as a new analytical technique (72). Multiplex gas chromatography (74) and functional group analysis of interferometric data from gas chromatography/Fourier transform infrared spectroscopy ( 108) are also topics of current interest.Several pentafluorophenyldialkylchlorosilanes are described as versatile derivatizing agents for use in gas chromatography with electron-capture detectors (76). The use of ion-selective electrodes and sodium tetraphenylborate as titrant permits potentiometric precipitation titrations of a variety of water-soluble cations such as quaternary ammonium salts, alkaloids, dyes, and other organic bases (88).