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題 名 | 利用化學螢光法測量表層海水中低濃度之硝酸鹽=Determination of Low-Level Nitrate in the Upper Water Column Using a Chemiluminescent Method |
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作 者 | 江東山; 龔國慶; 劉康克; | 書刊名 | 臺灣海洋學刊 |
卷 期 | 35:4 1996.12[民85.12] |
頁 次 | 頁431-440 |
分類號 | 351.93 |
關鍵詞 | 化學螢光法; 硝酸鹽; 西菲律賓海; 表層海水; Chemiluminescence; Nitrate; West philippine sea; Surface layer; |
語 文 | 中文(Chinese) |
中文摘要 | 為了測定西菲律賓海有光層中硝酸監 (包含亞硝酸鹽) 之濃度變化,本研究在海 研一號457航次,利用化學螢光法分析了nM級的硝酸監濃度 (含亞硝酸鹽)。本研究發現在 4OnM至1000nM間,螢光之峰值與硝酸根濃度有良好的線性關係,偵測極限則估計為3nM,濃 度約在60nM時,檔準度可達在l0%。在西菲律賓海之測站中測得表層5Om海水之硝酸鹽濃度 濃度在lOnM以內。5Om以下則隨深度呈指數上升,至2OOm可達10OOnM左右。 |
英文摘要 | In order to determine nitrate concentrations (including nitrite) in the euphotic zone of the West Philippine Sea, a chemiluminescent technique was employed on Cruise 457 of the Ocean Researcher I. A good linear correlation between the peak height of the chemiluminescent signal and nitrate concentrations was found in the concentration range of 40 to 1000 mM. The detection limit was estimated to be 3 nM. The precision for this method was ± 10% when the nitrate concentrations were about 60NM. The nitrate concentrations observed in the top 50m of the West Philippine Sea surface water were within 10 nM. The nitrate concentration, however, increased exponentially at depths below 50 m, reaching concentrations around 1000 nM at 200 m. |
本系統中英文摘要資訊取自各篇刊載內容。