Studies on AOTF as the Wavelength Selector for ETV-AAS

Abstract

Abstract: An experimental setup for atomic absorption spectrometry with a tantalum coil as the atomizer, and an acousto optic tunable filter(AOTF) as the wavelength selector was described. By using the atomic absorption spectrometry(AAS) Na was determined. The performance of AOTFwas evaluated. The effects of some operating conditions, including the electric current of HCL, the shielding gas flow rates, dry voltage, atomization voltage for tantalum coil atomizer on the absorption signal, were investigated. The characteristic concentration of Na was 0.045 μg/mLand the relative standard deviation was 2.6% (n =8) . Agood proportionality between absorbance and Na concentrion in the range of 0.050_1.0 μg/mLwas observed.

Key words: Acousto-optic tunable filter, Tantalum coil atomizer, Atomic absorption spectrometry

CLC Number:

O657

TrendMD:

TIAN Yuan, ZHAO Li-Wei, SUN Zheng, ZHANG Yi-Hua, SONG Da-Qian, ZHANG Han-Qi, JIN Qin-Han, JIN Dan-Hong. Studies on AOTF as the Wavelength Selector for ETV-AAS[J]. Chem. J. Chinese Universities, 2002, 23(1): 38.

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Studies on AOTF as the Wavelength Selector for ETV-AAS

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