| A NEW BIOGENIC SULFIDE CHEMICAL SENSOR FOR MARINE ENVIRONMENTAL MONITORING AND SURVEY |
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| 作者姓名： | 宋金明 赵卫东 |
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| 作者单位： | Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China |
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| 基金项目： | ContributionNo.3 84 0fromtheInstituteofOceanology，ChineseAcademyofSciences.ProjectsupportedbytheNationalScienceFoundationforOut |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＢｉｏｇｅｎｉｃｓｕｌｆｉｄｅｐｒｏｄｕｃｅｄｂｙｂａｃｔｅｒｉａｌｓｕｌｆａｔｅｒｅｄｕｃｔｉｏｎｉｓｏｎｅｏｆｔｈｅｍｏｓｔｉｍｐｏｒｔａｎｔｉｎｄｉｃａｔｏｒｓｉｎａｎｏｘｉｃｍａｒｉｎｅｅｎｖｉｒｏｎｍｅｎｔｓ,ｐａｒｔｉｃｕｌａｒｌｙｉｎｃｏｎｆｉｎｉｎｇｂａｙｓ,ｐｏｌｌｕｔｅｄｅｓｔｕａｒｉｅｓａｎｄａｑｕａｃｕｌｔｕｒｅａｒ ｅａｓ.Ｔｈｅｉｎｃｒｅａｓｅｏｆｉｔｓｃｏｎｃｅｎｔｒａｔｉｏｎｕｓｕａｌｌｙｉｎｄｉｃａｔｅｓｗｏｒｓｅｎｅｄｃｏｎｄｉｔｉｏｎｓ.…
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| 关 键 词： | 化学传感器 硫化物 海洋监测 海洋调查 |
| 收稿时间： | 27 October 1999 |
| 修稿时间： | 16 August 2000 |
A new biogenic sulfide chemical sensor for marine environmental monitoring and survey |
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| Song Jin-ming,Zhao Wei-dong.A NEW BIOGENIC SULFIDE CHEMICAL SENSOR FOR MARINE ENVIRONMENTAL MONITORING AND SURVEY[J].Chinese Journal of Oceanology and Limnology,2001,19(3):282-286. |
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| Authors: | Song Jin-ming Zhao Wei-dong |
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| Institution: | (1) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China |
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| Abstract: | A new convenient sulfide electrochemical sensor for marine environmental in situ monitoring and real time survey was developed. The new sensor based on a solid Ag 2S membrane electrode has outstanding chemical sensitivity and stability. It responds to the activity of sulfide ions according to a Nernstian slope of -31mV/decade. The sensor can be used to determine the total concentration of sulfides ( C T) by calibrating the pH value of the solution to a standard pH. The practical measurement range for total sulfide concentration is 0.1-10 mg/L in seawater. The sensor has a very low potential drift (<4mV) during two months in 0.1 mg/L sulfide seawater. This paper describes the preparation of the sensitive membrane and some main properties of the sensor. |
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| Keywords: | sulfide chemical sensor marine monitoring and survey |
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