摘要
本法利用单缝石英管，提高火焰原子吸收法的灵敏度并降低测试成本。方法用于大米、蒜头、茶叶中硒的测定，获得满意的结果。
This paper presents the use of a slotted quartz tube to increase the sensitivity ofconventional flame atomic absorption spectrometry for the determination of micro-amountof selenium in rice, the bulb garlic and tea. The slotted quartz tube is positioned on top of aconventional atomic absorption fumer. It is used in conjunction with an air-acetylene flame(lean) Advantages include low cost and simplicity. The recovery of selenium is 97～101%for rice, 98～102% for the bulb of garlic, and 95-100% for tea. The RSD is 1. 7% for.rice,l.5 for the bulb of garlic and 1.8% for tea. The results are satisfactory.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1994年第3期101-104,120,共5页
Spectroscopy and Spectral Analysis
关键词
火焰原子吸收法
硒
大米
蒜头
茶叶
Slotted guartz tube, FAAS, Selenium, Rice, Bulb of garlic, Tea
