中文核心期刊

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谢文明, KO Kwang-yong, LEE Kyu-seung. 土壤和白菜中低分子量有机酸的气相色谱分析[J]. 岩矿测试, 2009, 28(2): 97-100.
引用本文: 谢文明, KO Kwang-yong, LEE Kyu-seung. 土壤和白菜中低分子量有机酸的气相色谱分析[J]. 岩矿测试, 2009, 28(2): 97-100.
XIE Wen-ming, KO Kwang-yong, LEE Kyu-seung. Determination of Low Molecular Weight Organic Acids in Soils and Cabbages by Gas Chromatography[J]. Rock and Mineral Analysis, 2009, 28(2): 97-100.
Citation: XIE Wen-ming, KO Kwang-yong, LEE Kyu-seung. Determination of Low Molecular Weight Organic Acids in Soils and Cabbages by Gas Chromatography[J]. Rock and Mineral Analysis, 2009, 28(2): 97-100.

土壤和白菜中低分子量有机酸的气相色谱分析

Determination of Low Molecular Weight Organic Acids in Soils and Cabbages by Gas Chromatography

  • 摘要: 利用甲醇-硫酸混合液(体积比10∶7)对土壤和白菜中低分子量有机酸同时进行提取和甲酯化衍生,然后利用二氯甲烷液-液萃取,气相色谱法分析。土壤中7种低分子量有机酸(草酸、丙二酸、反丁烯二酸、琥珀酸、马来酸、L-苹果酸、柠檬酸)的添加回收率为81.93%~95.58%,白菜中的添加回收率为84.78%~106.99%,方法的检出限为0.72~4.14 mg/kg。方法用于测定根际、非根际土壤和白菜根系、茎叶中的低分子量有机酸,结果准确可靠。

     

    Abstract: The low molecular weight organic acids (LMWOAs) in rhizosphere soil, bulk soil, root and leave of cabbages were extracted and derived by the mixture of methanol and sulfuric acid (10∶7). Seven organic acids (oxalic, malonic, fumaric, succinic, maleic, L-malic and citric acid) were identified and quantified by GC instrument equipped with FID. The recovery were ranged from 81.93% to 95.58% for soils and from 84.78% to 106.99% for roots. The detection limit was ranged from 0.72 mg/kg to 4.14 mg/kg. The method was suitable for the reliable and accurate determination of low molecular weight organic acids in soils and cabbages.

     

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