Dealing with interferences in furnace atomizer AAS—Se in nickel alloys

摘要: Abstract The determination of selenium in high-temperature nickel alloys was selected as a particularly difficult analysis to demonstrate methods overcoming interferences furnace atomizer atomic absorption. alloy not only causes severe chemical interferences, but results spectral which cannot be eliminated by conventional deuterium arc background correctors. In this work, combination recent technological advances used eliminate these problems. Chemical were reduced the use microboat. and also an aerosol deposition system. Spectral due both broadband structured absorption corrected with Smith-Hieftje system, correction technique based on current pulsing single hollow cathode lamp corrects very close analyte wavelength. With interference reduction techniques, accurately measured dissolved NBS “superalloys” simple standards. method additions and/or careful matrix matching required.