title: Development and application of acousto-optic background correction for inductively coupled plasma atomic emission spectrometry.
abstract: In two configurations, a solid-state acousto-optic (AO) deflector or modulator is mounted in a 0.5 m monochromator for background correction with inductively coupled plasma atomic emission spectrometry (ICP-AES). A fused silica acousto-optic modulator (AOM) is used in the ultraviolet (UV) spectral region applications while a glass AO deflector (AOD) is used for the visible (VIS) region. The system provides rapid sequential observation of adjacent on- and off-line wavelengths for background correction. Seventeen elements are examined using pneumatic nebulization (PN) and electrothermal vaporization (ETV) sample introduction. Calibration plots were obtained with each sample introduction technique. Potable water and vitamin tablets were analyzed. Flame atomic absorption (FAA) was used to verify the accuracy of the AO background correction system.
authors.affiliation: Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, USA.
authors.forename: Heather M
authors.initials: HM
authors.lastname: Miller
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Spudich
authors.forename: Jon W
authors.initials: JW
authors.lastname: Carnahan
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D016477:Artifacts; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005740:Gases; D006358:Hot Temperature; D008832:Microchemistry / Q000379:methods*; D055095:Optics and Photonics / Q000295:instrumentation*; D011786:Quality Control; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013054:Spectrophotometry, Atomic / Q000295:instrumentation* / Q000379:methods* / Q000592:standards; D013269:Stochastic Processes; D014815:Vitamins / Q000032:analysis / Q000737:chemistry; D014867:Water / Q000032:analysis / Q000737:chemistry
chemical_list: D005740:Gases; D014815:Vitamins; D014867:Water