|
| Determination of Nitrate and Phosphate in South Sea by Reagent Free Ion Chromatography and a Preliminary Study of Its Geochemical Significance |
| Received:July 06, 2012 Revised:July 18, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：doi:10.3969/j.issn.2095-1035.2012.03.004 |
| KeyWord:the south china sea;reagent free ion chromatography;nitrate;phosphate |
| Author | Institution |
| YIN Yuefen |
国家海洋局第一海洋研究所 生态中心，山东 青岛 |
| YI Yu |
国家海洋局第一海洋研究所 生态中心，山东 青岛 |
| ZHENG Li |
国家海洋局第一海洋研究所 生态中心，山东 青岛 |
| GAO Guorui |
国家海洋局第一海洋研究所 生态中心，山东 青岛 |
| CHEN Xianyao |
国家海洋局第一海洋研究所 生态中心，山东 青岛 |
|
| Hits: 1939 |
| Download times: 36 |
| Abstract: |
| We determined nitrate and phosphate concentrations of the sea water samples collected from the section E of South China Sea, which is 4000 meter deep at full-level stations, during the voyage in 2010 for “Investigation on the Response to Climate Changes Caused by marine Hazard in the Western Pacific (Rose)” . The concentration of NO3- and PO43—in the sea water samples were analyzed by silver oxide precipitation method together with reagent free ion chromatography technique. The limits of detection for NO3 - and PO43- were 4.8 and 17.1 μg/L, respectively. The recoveries for NO3 - and PO43- were 94.5 % and 101.2 %, respectively. The relative standard deviations for NO3 - and PO43- were 0.27% and 0.15%, respectively. In summary, the results is satisfactory. A preliminary study on the geochemical significance of the determination of nitrate and phosphate concentrations of the sea water was conducted, which is expected to provide basic data for the research on marine environment of South China Sea and its surrounding waters. |
| Close |