高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (1): 38.

• 研究论文 • 上一篇    下一篇

声光可调滤光片作为电热原子吸收光谱仪波长选择器的研究

田媛1, 赵丽巍1, 孙征1, 张忆华1, 宋大千1, 张寒琦1, 金钦汉1, 靳丹虹2   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 长春医学高等专科学校药学系, 长春 130031
  • 收稿日期:2001-11-30 出版日期:2002-01-24 发布日期:2002-01-24
  • 通讯作者: 张寒琦(1948年出生),男,教授,博士生导师,从事光谱化学分析研究.
  • 基金资助:

    中国分析测试协会资助

Studies on AOTF as the Wavelength Selector for ETV-AAS

TIAN Yuan1, ZHAO Li-Wei1, SUN Zheng1, ZHANG Yi-Hua1, SONG Da-Qian1, ZHANG Han-Qi1, JIN Qin-Han1, JIN Dan-Hong2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, China;
    2. Department of Pharmacy, Changchun Medical College, Changchun 130031, China
  • Received:2001-11-30 Online:2002-01-24 Published:2002-01-24

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被引次数

17

摘要： 研究了声光可调滤光片(AOTF)的性能,并以AOTF为波长选择系统,钽丝为原子化器,用原子吸收光谱法测定了Na.考察了空心阴极灯电流、保护气流量、钽丝原子化器的干燥电压和原子化电压对Na吸收信号的影响.在选定的最佳实验条件下,测定Na的特征浓度为0.045μg/mL,精密度为2.6%(n=8).在0.050～1.0μg/mL范围内,Na的浓度与吸光度值有良好的线性关系

关键词: 声光可调滤光片, 钽丝原子化器, 原子吸收光谱法

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

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