TY - JOUR
T1 - Improved laser technique for high sensitivity atomic absorption spectroscopy in flames
AU - Whittaker, Edward A.
AU - Pokrowsky, Peter
AU - Zapka, Werner
AU - Roche, Kevin
AU - Bjorklund, Gary C.
PY - 1983/10
Y1 - 1983/10
N2 - Frequency modulation laser spectroscopy is utilized for high sensitivity detection of trace species aspirated into a flame of the type commonly used for atomic absorption spectroscopy (AAS). The method is applied to the detection of sodium atoms in an air-acetylene flame and data are obtained on the distribution of ground and excited state populations as a function of height above the burner. Absorptions as small as 1.5 × 10-4 may be detected with a signal-to-noise of one. With multi-passing, a detection limit of 3.3 × 106 sodium atoms/cm3 was obtained.
AB - Frequency modulation laser spectroscopy is utilized for high sensitivity detection of trace species aspirated into a flame of the type commonly used for atomic absorption spectroscopy (AAS). The method is applied to the detection of sodium atoms in an air-acetylene flame and data are obtained on the distribution of ground and excited state populations as a function of height above the burner. Absorptions as small as 1.5 × 10-4 may be detected with a signal-to-noise of one. With multi-passing, a detection limit of 3.3 × 106 sodium atoms/cm3 was obtained.
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U2 - 10.1016/0022-4073(83)90026-2
DO - 10.1016/0022-4073(83)90026-2
M3 - Article
AN - SCOPUS:0013603314
SN - 0022-4073
VL - 30
SP - 289
EP - 296
JO - Journal of Quantitative Spectroscopy and Radiative Transfer
JF - Journal of Quantitative Spectroscopy and Radiative Transfer
IS - 4
ER -