| THE SURFACE REACTION ON LIQUID-SOLID INTERFACE OF“AMINO ACID-Cu(II)-MnO_2”SYSTEM IN SEA WATER |
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| 引用本文： | 王修林,张正斌,刘莲生.THE SURFACE REACTION ON LIQUID-SOLID INTERFACE OF“AMINO ACID-Cu(II)-MnO_2”SYSTEM IN SEA WATER[J].中国海洋与湖沼学报,1988(3). |
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| 作者姓名： | 王修林 张正斌 刘莲生 |
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| 作者单位： | Shangdong College of Oceanology，Shangdong College of Oceanology，Shangdong College of Oceanology |
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| 摘 要： | The results obtained from the Cu(Ⅱ)%-pH curve of the system in the presence of added amino acid indicated that the added amino acids of higher concentration can inhibit the Cu(Ⅱ)-δ-MnO2 ion exchange and that their inhibiting effects decrease in the following sequence when the initial amino acid concentrations are 20.00 ppm: histidine > cystine > glutamic acid > proline > alanine > glycine. The determination of amino acid in solution performed with an amino acid analyser showed that added amino acids react chemically on the surface of the δ-MnO2 According to thermodynamic equilibria relations in the system, amino acids can be changed to amines because of their decarboxylation on the surface of the δ-MnO2. Considering (1) the effect-inhibiting factor of amine F (β, Ka, pH) representing the complex potential of amine with Cu(Ⅱ) insolution and (2) the acidic constant of - NH3+ group in the amine molecule representing the ability of cation exchange of the amine with δ-MnO2, the inhibiting seqence of
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