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UV photochemical vapor generation (photo-CVG) as sample introduction was first adapted for determination of ultratrace cobalt by atomic fluorescence spectrometry (AFS). Cobalt volatile species can be generated when the buffer system of formic acid and formate containing Co (II) is exposed to UV radiation. The generated gaseous products were separated from liquid phase within a gas–liquid separator...
UV-induced carbonyl generation with formic acid is used for gaseous sample introduction into an atomic fluorescence spectrometer for the determination of ultra-trace nickel. Compared with conventional carbonyl generation, no toxic gas CO is involved in this work, and volatile Ni(CO) 4 is generated with a single reagent formic acid under the irradiation of UV light (253.7nm, 15W). The reaction...
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