Quantitative determination of the salinity of seawater droplet in 10−6 to 10−10 gram

Qian Zhengxu; Peng Fangying

doi:10.1007/BF02849660

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Quantitative determination of the salinity of seawater droplet in 10−6 to 10−10 gram

Updated：2023-05-16

- Quantitative determination of the salinity of seawater droplet in 10−6 to 10−10 gram
- Journal of Oceanology and Limnology Vol. 8, Issue 3, Pages: 213-219(1990)
- Affiliations：
  
  Institute of Oceanology
- Author bio：
- Funds：
- DOI：10.1007/BF02849660
  CLC：
- Published：1990
- Accepted：
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Zhengxu, Q., Fangying, P. Quantitative determination of the salinity of seawater droplet in 10−6 to 10−10 gram., Chin. J. Ocean. Limnol. 8, 213–219 (1990). https://doi.org/10.1007/BF02849660
DOI：

Zhengxu, Q., Fangying, P. Quantitative determination of the salinity of seawater droplet in 10−6 to 10−10 gram., Chin. J. Ocean. Limnol. 8, 213–219 (1990). https://doi.org/10.1007/BF02849660 DOI：

摘要

Abstract

The rate of evaporation of seawater droplets in the air-sea boundary layer can be estimated by its salinity change compared to the sea surface salinity. A micro-chemical method based on Farlow (1954) is developed for quantitative determination of the salinity of an individual droplet without the error due to further evaporation after sampling. A halide ion-sensitive sampling surface is prepared by colloidally dispersing brown silver dichromate into the gelatin layer of a commercially available film. The reaction of soluble chlorides with the silver salt leaves a clear white halo with diametera on the brown film to reveal the volume of the droplet. After the film is developed in a water vapor saturated atmosphere

the halo grows to diameterd with the original as the embryo to indicate the quantity of chloride ion involved in the action. The ratio ofd/(a1.5) is a function of the salinity of the droplet. The method can be used to determine the salinity of seawater droplet of 10−6 to 10−10 gram. Details of the principle and preparation

and calibration of the reagent film

are presented.

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references

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