The flame photometric determination of Fe, Ni, Co, Cu, Mn, Cr, and Al in waters

Nonferrous metallurgy. II. Zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, and tungsten

“…A hollow-cathode or vapor discharge source and flame excitation were shown to be useful for the determination of chromium by atomic fluorescence (550). Chromium in water was concentrated and separated from interfering elements b y ion-exchange and extraction with methyl isobutyl ketone prior to determination by flame photometry (590). Chromium was separated by solvent extraction and determined by emission from a n oxygenhydrogen flame in the analysis of alloys (560).…”

“…Flame photometric: study of flame characteristics (172) Fluorometric-rhodamine 6G: Si, SiHCls (23) Atomic absorption spectrophotometry: study of flame and sensitivity (725) Fluorometrie-triazinylstilbexone: study of conditions and interferences (749) Atomic absorption spectrophotometry: study of sensitivity (616)(617)(618); study of burner and flame (237); effect of amines (287); study of flame (510); study of excitation source and flame (464); description of automatic equipment (724); rare earth and refractory metals (330); Al (61,797); Al, Ni (398); Ni (190); iron and steel (70,249,307,672); ruby (756); minerals (28); urban air (445); waters (490) Flame photometry: study of burner and flame (810); alloys (560); water (590) Atomic fluorescence flame photometry: description of equipment (550) Fluorometric-carminic acid: study of conditions (376); steel (377) Atomic absorption spectrophotometry: study of flame (SO, 617); water, plant materials, silicate rocks (127); suppression of interferences (167); Nb, Ta tion of 4-amino-5-hydroxynaphthol-2, 7-disulfonic acid with brómate was proposed (406) and applied to the determination of vanadium in sodium and potassium chlorides (407). The oxidation of phenylhydrazine-p-sulfonic acid by chlorate has also been studied in detail (741) and the oxidation of thiocyanate by brómate has also been proposed (331).…”

“…Chromium was separated by solvent extraction and determined by emission from an oxygenhydrogen flame in the analysis of alloys (560). Chromium in water was concentrated and separated from interfering elements by -cxchange and extraction with methyl isobutyl ketone prior to determination by flame photometry (590).…”

Highly Selective and Sensitive Electrochemical Determination of Ni(II) in Real Samples Based on Ion‐imprinted Polymer Technology

“…Various methods including spectrometry [5][6][7][8][9][10][11][12][13][14][15][16], liquid chromatography [17,18], ion chromatography [19], flame photometry [20] and electrochemical techniques [21][22][23][24][25][26], have been used for the determination of nickel in biological, food, natural water, and wastewater samples. Non-electrochemical methods have basic defects such as long analysis time, low sensitivity and expensive devices, therefore, specific pretreatment process is necessary before the analysis.…”