SIMULTANEOUS SEPERATION AND CONCENTRATION FOR MICRO PHENOL AND ANILINE BY DISTILLATION WITH ADDING SALTS

WT4”BZ]Experimental method of simultaneous separation and concentration for micro phenol and aniline in water sample by distillation with a large amount of NaCl in the neutral medium of pH 7 0±0 5 is studied on the basis of the principle of salt effect Recoveries of phenol and aniline can be found about 93% and above 91% respectively in the first 50 ml distillate (1/5 of value of water sample) when 250 ml sample is distilled with the addition of 150 g NaCl When the contents of phenol and aniline are determined simultaneously by UV-4 th order derivative spectrum (4-ODS), accurate results of determination for micro phenol and aniline in water can be obtained through the correction of recovery The method can be applied to simultaneous separation and determination for micro phenol and aniline in waste water [WT4”HZ]