| 火焰原子吸收光谱法间接测定土壤中有效硫 |
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| 引用本文： | 倪张林,汤富彬,屈明华,莫润宏.火焰原子吸收光谱法间接测定土壤中有效硫[J].土壤通报,2012(5):1136-1138. |
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| 作者姓名： | 倪张林 汤富彬 屈明华 莫润宏 |
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| 作者单位： | 中国林业科学研究院亚热带林业研究所;国家林业局经济林产品质量检验检测中心(杭州) |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金(RISF6150)资助 |
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| 摘 要： | 试验旨在建立火焰原子吸收光谱法间接测定土壤中有效硫,试验原理基于SO42-和BaCrO3溶液反应生成BaSO4沉淀,置换出定量的CrO42-,通过原子吸收法测定Cr,通过换算得知有效硫的含量。试验优化了影响结果的浸提剂、静置时间、陈化时间等因素;通过标准土样的验证,结果可靠、稳定。
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| 关 键 词： | 火焰原子吸收光谱法 有效硫 土壤 |
Determination of Effective Sulfur in Soil by Indirect AAS |
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| Institution: | NI Zhang-lin,QU Ming-hua,TANG Fu-bin(Research Institute of Subtropical Forestry,Quality Testing Center for None-wood Forest Products of State Forestry Administration(Hangzhou),Zhejiang Fuyang 311400,China) |
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| Abstract: | This paper established an indirect AAS method for the determination of effective sulfur in soil.The effective sulfu(r SO42-)reacted with BaCrO3 to produce BaSO4 and chromate(CrO42-).The chromate(CrO42-)can be determination by AAS.The effective sulfur content was calculated from the result of chromate determination.After optimizing the extractant,static time and ageing time,this method was proved by testing standard soil.The results showed that the method was reliable and stable. |
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| Keywords: | AAS Effective sulfur Soil |
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