| 摘要 |
FIELD: analytical methods. SUBSTANCE: invention deals with concentrating phenol in analytical control of natural, drinking, and purified waste waters. Concentration is carried out by extraction by tributyl phosphate, which is preliminarily applied on foamed polyurethane in amount 50-75% of the weight of foamed polyurethane. Sample is extracted on vibromixer. Factor of concentration is 250-270. EFFECT: increased factor of concentration. 2 tbl, 10 ex |
