DETECTION OF PHENOL IN BOTTOM SEDIMENTS OF THE BARENTS AND KARA SEAS WITH THE HELP OF HIGH PERFORMANCE LIQUID CHROMATOGRAPHY AND FLUOROMETRIC DETECTOR
Optimization of phenol detection by method of high performance liquid chromatography (HPLC) with the use of a fluorometric detector has been carried out. To effectively extract phenol from bottom sediments a method for sample preparation with the use of 25% acetonitrile under the action of ultrasound has been worked out. The limit of phenol extraction made 90-100% with addition of phenol from 10 ng/g to 2000 ng/g. The degree of phenol detection (the ratio signal/noise = 3) in the samples of bottom sediments made about 1 ng/g. To assess the applicability of the method proposed for phenol determination, 122 samples of bottom sediments from the Arctic seas were analyzed. Average phenol content in the regions of the Barents sea studied (12,4 ng/g, n = 52) was 1,5 times higher than that in the Kara sea (8,2 ng/g, n = 70).