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作者已用滴体积法首次比较系统地测定了环已烷、环戊烷、甲基环已烷与海水的界面张力在不同温度（１６～３６℃）和不同的海水盐度（０～４０）时之值，测定值相对误差约在０．５％以内。结果表明，在海水盐度恒定时，所研究的环烷烃／海水界面张力与温度有线性关系，而在温度恒定时，其界面张力与盐度呈线性关系。环已烷、环戊烷与海水的界面张力的温度系数为负值，而甲基环已烷／海水界面张力的温度系数为正值，这一异常现象有待今后作进一步理论探讨。环已烷、环戊烷与海水界面张力的盐度系数为正值，而甲基环已烷／海面水界面张力的盐度系数为负值。各环烷烃海水／界面张力的温度系数与盐度呈线性相关，而其盐度系数则与温度有线性关系。已用计算机对实验数据进行了统计处理，导出了各环烷烃／海水界面张力的温度及盐度的经验公式，公式计算值与测定值的平均标准偏差＜±０．２ｍＮ／ｍ。
The authors have used the drop volume method for the first time to systematically determine the interfacial tension of cyclohexane, cyclopentane, methylcyclohexane and seawater at different temperatures (16 ~ 36 ℃) and different seawater salinity (0 ~ 40) When the value of the measured value of the relative error of about 0.5% or less. The results show that the interfacial tension of naphthenic / seawater has a linear relationship with temperature at a constant salinity of seawater, but a linear relationship between interfacial tension and salinity at a constant temperature. The temperature coefficient of interfacial tension of cyclohexane, cyclopentane and seawater is negative, and the temperature coefficient of methylcyclohexane / seawater interfacial tension is positive. This anomaly needs to be further studied theoretically in the future. The salinity coefficient of cyclohexane, cyclopentane and seawater interfacial tension is positive, while the salinity coefficient of methylcyclohexane / seawater interfacial tension is negative. The temperature coefficients of each naphthenic seawater / interfacial tension are linearly correlated with salinity, while the salinity coefficients are linear with temperature. The experimental data have been processed by computer, and the empirical formula of the interfacial tension of naphthenic / seawater has been deduced. The average standard deviation of calculated value and measured value is less than ± 0.2mN / m.