Determination of Henry''''s Law Constants for Dimethyl Sulfide in Seawater
海水中二甲基硫亨利常数的测定

The article presents the method of determination of Henry's Law Constant(K) for dimethyl sulfide (DMS) in seawater using multiple phase equilibration/headspace gas chromatography. The method is based on the demonstration that analysis of only one phase after multiple phase equilibration give all necessary data. The values of K of DMS in seawater determined by this method was 0.089 with relative standard deviation(RSD) of 5.50% at 22 degrees C. The linear relationship between log K and w (NaCl) was log K = 0.0688.w (NaCl) - 1.3568 with correlation coefficient(r) of 0.997. The regression equation of log K against reciprocal of absolute temperature(T) was log K = -1,544.8/T + 4.2112 with r of 0.996.