| DETERMINATION OF DISSOLVED ORGANIC CARBON IN SEAWATER USING UV/PERSULPHATE METHOD AND HTCO METHOD |
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| 作者姓名： | 王江涛 张正斌 刘莲生 |
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| 作者单位： | Institute of Marine Chemistry，Qingdao Ocean University，Qingdao 266003 |
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| 摘 要： | MODUonONThermsurmtofdissolvedorganiccarbon.(DoC)inseawaterhasprovedtobeaddricultandcontroversialproedurepeenneretal.,l992,l993,OgawaandOgam,l992,Tanoue,l992).InterestinthemeasurernentofDOCinseaytteyintenSfomtlyinoonnographicdedes(Sharp,l993)largeyduetothesuggestionthathighteIneratU-rcatalyticoxidationanalysisyieklshighervaluesthanhaditionalweoxidationmethods(SugdriraandSuzuki,l988).Thereportedhigherconcenttationsappeatalsignilicantforg1obaloasnfluxmodelingcyoggweiler,l992)andforunderst…
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| 收稿时间： | 6 December 1995 |
| 修稿时间： | 19 July 1996 |
Determination of dissolved organic carbon in seawater using UV/persulphate method and HTCO method |
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| Wang Jiang-tao,Zhang Zheng-bin,Liu Lian-sheng.DETERMINATION OF DISSOLVED ORGANIC CARBON IN SEAWATER USING UV/PERSULPHATE METHOD AND HTCO METHOD[J].Chinese Journal of Oceanology and Limnology,1997,15(1):25-31. |
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| Authors: | Wang Jiang-tao Zhang Zheng-bin Liu Lian-sheng |
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| Institution: | (1) Institute of Marine Chemistry, Qingdao Ocean University, 266003 Qingdao |
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| Abstract: | A comparison between the high-temperature catalytic oxidation method (HTCO) and the UV/persulphate method for the determination of dissolved organic carbon (DOC)in seawater is presented in this paper. In seawater sample chloride ion can affect the oxidation efficiency of the UV/persulphate method if the asymptotic concentration of persulphate is not reached.During HTCO analysis, blanks that appear to originate mainly from the catalyst are high and far from constant.If the blanks are well estimated and correction is made, the difference of determined DOC values between the UV/persulphatemethod and the HTCO mehod is small, the HTCO values being slightly higher. |
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| Keywords: | DOC UV/persulphate method HTCO method |
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