Method for accurately testing content of salt in seawater desalination liquid based on ion concentration and equipment special for method
A test method and ion concentration technology, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve problems such as activity coefficient, correction, low concentration, and small-scale concentration determination
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[0038] Prepare a series of NaCl solutions and seawater desalination solutions with an ionic strength between 0.0007 and 0.7mol / kg, and the composition of the seawater desalination solution with an ionic strength of 0.7mol / kg adopts Kester’s artificial seawater preparation method [see: Limnology & Oceanography , 1967, (12): 176-179], seawater desalination liquids of other ionic strengths were obtained by diluting 0.7mol / kg seawater desalination liquids. use as Figure 5 wherein the temperature is controlled by constant temperature water bath device W1, I1 is the instrument of the present invention, T1 is a thermocouple, E1 is a chloride ion selective electrode, E2 is a sodium ion glass electrode, and E1 and E2 are connected with the instrument I1 of the present invention to form the principle Battery. In order to improve the stability of sodium ion glass electrode E2 and chloride ion selective electrode E1, pretreatment must be carried out before the experiment. -4 mol / LNaCl ...
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