Analysis of aliphatic car☐ylic acids and amino acids in effluents of landfills, composting plants and fermentation plants by ion-exclusion and ion-exchange chromatography
Analysis of aliphatic car☐ylic acids and amino acids in effluents of landfills, composting plants and fermentation plants by ion-exclusion and ion-exchange chromatography
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通过离子排斥和离子交换色谱法分析垃圾填埋场、堆肥厂和发酵厂废水中的脂肪族羧酸和氨基酸
DOI：
10.1016/s0021-9673(96)01087-4
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发表时间：
1997
影响因子：
4.1
通讯作者：
A. Kettrup
中科院分区：
文献类型：
--
作者：
K. Fischer;A. Chodura;J. Kotalik;D. Bieniek;A. Kettrup
用两个独立的离子排斥色谱柱(Merck Polyspher OA-HY，Dionex HPICE AS6)和检测模式(UV吸光度为210 nm，电导性)，对垃圾渗滤液和相关水样中的短链脂肪酸，包括挥发性脂肪酸、二/三☐酸、羟基和酮酸进行了分析。用离子色谱法测定样品中氨基酸的含量。由于氨基酸分析方法普遍标准化，因此对CAR☐乳酸的测定进行了优化。VFAS(7种化合物)对样品的溶解有机碳(DOC)含量的贡献率在33%至89%之间。多官能性酸(9种化合物)的DOC比例为1.1-49%。DOC含量的0.9%-13%被分配到氨基酸中。主要成分为丙氨酸、缬氨酸和亮氨酸。比较了几种离子排斥色谱分析系统的分析效率，并讨论了它们的具体应用特性。
Short chain aliphatic acids, including volatile fatty acids (VFAs), di-/tricar☐ylic acids, hydroxy- and keto-acids were analyzed in landfill leachates and related water samples by two independently operated ion-exclusion chromatographic systems, differing mainly in the retention characteristics of the separation columns (Merck Polyspher OA-HY, Dionex HPICE AS6), and in the detection mode (UV absorbance at 210 nm, conductivity). The amino acid content of the samples was determined by ion chromatography. Because methods for amino acids analysis are widely standardized, the main efforts were undertaken to optimize the determination of car☐ylic acids. The VFAs (7 compounds) contributed between 33% and 89% to the sample's dissolved organic carbon (DOC) content. The DOC proportions of the multifunctional acids (9 compounds) ranged from 1.1–49%. Between 0.9% and 13% of the DOC content was apportioned to amino acids. Main components were alanine, valine and leucine. The analytical efficiencies of the ion-exclusion chromatography systems were compared and the specific application properties are discussed.