A new biogenic sulfide chemical sensor for marine environmental monitoring and survey

Song Jin-ming; Zhao Wei-dong

doi:10.1007/BF02850666

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A new biogenic sulfide chemical sensor for marine environmental monitoring and survey

Updated：2023-05-16

- A new biogenic sulfide chemical sensor for marine environmental monitoring and survey
- Journal of Oceanology and Limnology Vol. 19, Issue 3, Pages: 282-286(2001)
- Affiliations：
  
  Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/BF02850666
  CLC：
- Published：2001
- Accepted：
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Jin-ming, S., Wei-dong, Z. A new biogenic sulfide chemical sensor for marine environmental monitoring and survey., Chin. J. Ocean. Limnol. 19, 282–286 (2001). https://doi.org/10.1007/BF02850666
DOI：

Jin-ming, S., Wei-dong, Z. A new biogenic sulfide chemical sensor for marine environmental monitoring and survey., Chin. J. Ocean. Limnol. 19, 282–286 (2001). https://doi.org/10.1007/BF02850666 DOI：

摘要

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 Ag2S 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 (<4 mV) 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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references

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