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适用于深海热液环境的全固态电化学传感器的研究进展 被引量:8

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摘要 通过熔融碳酸盐氧化法形成的Ir/IrO_2电极在各种介质中均具有良好的工作性能,并且适合于制作深海热液环境的pH探测电极,Ta/Ta_2O_5也具有一定的应用潜力,而W/WO_3对H^+浓度响应性能差,响应电位与pH之间无线性关系;Ir/IrO_2电极和Ag/AgCl参比电极之间电位差与溶液NaCl浓度之间有良好的线性关系,相关系数R^2均在0.99以上,可把特定NaCl浓度的海水作为参比电解质,如NaCl浓度偏离指定值,则可按这一线性关系对电位差进行校正。离子强度对海水总溶解S^(2-)的探测有一定影响,但在其浓度小于0.1 mol/L时,这种影响可以忽略。
出处 《自然科学进展》 北大核心 2004年第2期141-144,共4页
基金 国家重点基础研究发展规划(批准号:G200007850003) 国家"十五"大洋资源 环境勘查与研究重大专项(批准号:DY105-03-01)资助项目
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