| 火焰原子吸收光谱法间接测定植物叶片中的硫 |
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| 引用本文： | 张琪,刘琳娟.火焰原子吸收光谱法间接测定植物叶片中的硫[J].化学分析计量,2007,16(2):40-42. |
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| 作者姓名： | 张琪 刘琳娟 |
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| 作者单位： | 南通市环境监测中心站,南通,226006 |
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| 摘 要： | 将植物叶片中的有机硫和无机硫用酸消化使植物体中的各种硫转化成硫酸盐,利用硫酸盐与铬酸钡悬浊液反应释放出铬酸根,以火焰原子吸收光谱法测定溶液中游离的铬酸根,间接测定消化液中的硫酸盐。研究了试验条件对测定灵敏度的影响,确定了最佳试验条件,该法用于植物叶片中硫含量的分析,回收率在92.5%~96.3%之间。
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| 关 键 词： | 火焰原子吸收光谱法 间接测定 植物叶片 硫 |
| 修稿时间： | 2006年12月30 |
INDIRECT DETERMINATION OF THE CONCENTRATION OF SULFUR IN PLANT LEAVES BY FLAME ATOMIC ABSORPTION SPECTROMETRY |
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| Zhang Qi,Liu Linjuan.INDIRECT DETERMINATION OF THE CONCENTRATION OF SULFUR IN PLANT LEAVES BY FLAME ATOMIC ABSORPTION SPECTROMETRY[J].Chemical Analysis And Meterage,2007,16(2):40-42. |
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| Authors: | Zhang Qi Liu Linjuan |
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| Abstract: | A method for the indirect determination of the concentration of sulfur in plant leaves by flame atomic absorption spectrometry (FAAS) was proposed.The sulfur in plant leaves was transformed into SO42-by digestion and reacted with BaCrO4 to produce CrO42-, then the concentration of sulfur in plant was determined indirectly by FAAS. Experimental conditions were investigated and optimized. The proposed method has been applied to the determination of sulfur in plant leaves with recoveries of 92.5%-96.3%. |
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| Keywords: | flame atomic absorption spectrometry indirect determination plant leaf sulfur |
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