Detection of tyrosine,trace metals and nutrients in cow dung:the environmental significance in soil and water environments

查看全文 作　　者：Khan [1]M.G.Mostofa;Longlong [1]Li;Congqiang [2]Liu

机构地区：[1]Institute of Surface-Earth System Science,Tianjin University;[2]State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences

出　　处：《Acta Geochimica》索引2018年第37卷第4期,共7页

基　　金：financially supported by the Key Construction Program of the National 985 Project,Tianjin University,China;the National Key R and D Program of China (2016YFA0601000) 摘　　要：This study examined the dissolved organic matter(DOM) components of cow dung using a combination of fluorescence(excitation–emission matrix,EEM)spectroscopy and parallel factor(PARAFAC) modelling along with eleven trace metals using ICP-MS and nutrients(NH_4^+ and NO_3^-) using an AA3 auto analyser. EEM–PARAFAC analysis demonstrated that cow dung predominantly contained only one fluorescent DOM component with two fluorescence peaks(Ex/Em=275/311 nm and Ex/Em=220/311 nm),which could be denoted as tyrosine by comparison with its standard. Occurrence of tyrosine can be further confirmed by the FTIR spectra. Trace metals analysis revealed that Na,K and Mg were significantly higher than Ca,Fe,Mn,Zn Sr,Cu,Ni and Co. The NH_4^+ concentrations were substantially higher than NO_3^-.These results thus indicate that the dissolved components of the cow dung could be useful for better understanding its future uses in various important purposes. 关键词：金属分析奶牛粪营养素环境意义酷氨酸水环境溶解有机物土壤

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Detection of tyrosine,trace metals and nutrients in cow dung:the environmental significance in soil and water environments

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耦合文献(32)

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