Optical enhancements and applications of rapid atomic emission spectrometry acousto-optic deflector background correction

2001 ◽  
Vol 16 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Thomas M. Spudich ◽  
Jon W. Carnahan
Keyword(s):  
Atomic Emission ◽  
Background Correction ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry

Acousto-Optic Signal Modulation for Atomic Emission Spectrometry Background Correction

1997 ◽  
Vol 51 (6) ◽  
pp. 765-769 ◽  
Author(s):  
Thomas M. Spudich ◽  
Brian A. Pelz ◽  
Jon W. Carnahan
Keyword(s):  
Atomic Emission ◽  
Atomic Spectrometry ◽  
Background Correction ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Signal Modulation ◽  
Spectral Shifting ◽  
On Line ◽  
Correction System

An acousto-optic diffraction device is mounted within a polychromator to perform spectral shifting for the purpose of background correction for atomic spectrometry. Controlling the applied frequency to the acousto-optic allows “on-line” and “off-line” spectral observations. Preliminary investigations included characterization of the behavior of the photomultiplier tube (PMT) signal output at various acoustic frequencies and applied powers to verify the applicability of the system. Low-rate (0.1 Hz) frequency modulation was performed to successfully test the applicability of the background-correction system.

scholarly journals Development and Application of Acousto-Optic Background Correction for Inductively Coupled Plasma Atomic Emission Spectrometry

2003 ◽  
Vol 57 (6) ◽  
pp. 703-710
Author(s):  
Heather M. Miller ◽  
Thomas M. Spudich ◽  
Jon W. Carnahan
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Background Correction ◽  
Sample Introduction ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Flame Atomic Absorption

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.

Background correction by wavelength modulation using a microcomputer in atomic emission spectrometry

1986 ◽  
Vol 89 (1-6) ◽  
pp. 357-367 ◽  
Author(s):  
Ali G�kmen ◽  
Mehrdad Delzendeh ◽  
M�rvet Volkan ◽  
O. Yavuz Ataman ◽  
John M. Ottaway
Keyword(s):  
Atomic Emission ◽  
Background Correction ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Wavelength Modulation
Sign in / Sign up

Export Citation Format

Share Document