| 用Ag2S电极电位滴定法测定海水氯度 |
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| 引用本文： | 刘开祥.用Ag2S电极电位滴定法测定海水氯度[J].海洋科学,1986,10(2):43-45. |
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| 作者姓名： | 刘开祥 |
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| 作者单位： | 江苏海水综合利用研究所 |
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| 摘 要： | 本文以Ag_2S银离子电极为指示电极,第二种离子选择电极为参比电极组成无液接测量系统,对海水中高含量氯的测定进行了研究。试验表朋,以氟电极或玻璃电极作参比电极,在酸性溶液中,电位突跃约为140mV,终点明显,尤其是氟电极作参比电极,电位较稳定。证明了在酸性溶液中,可以不加有机试剂直接测定海水中高含量氯。
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DETERMINATION OF CHLORINITY IN SEAWATER BY POTENTIOMETRIC TITRATION WITH SILVER SULFIDE ELECTRODE |
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| Abstract: | In this paper, the chlorinity of seawater was determined by potentiometric titration with AgNO3 solution using a silver sulfide electrode as the indicator electrode and a LaF3 electrode or glass electrode as a reference, with a large potentiometric break occurring in the process. The relative standard deviation in determining chloride content was ±1%. Recovery of chloride was 99.3-102%. |
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