Рубрики:
SOLID-PHASE EXTRACTION
LIQUID-CHROMATOGRAPHY
ELECTROCHEMICAL DETECTION
TRACE ENRICHMENT
AQUEOUS SAMPLES
CHLOROPHENOLS
POLAR
MICROEXTRACTION
SUBSTANCES
SORBENTS
Кл.слова (ненормированные):
phenols -- natural water -- potable water -- high-performance liquid chromatography -- sorption preconcentration -- solid-phase extraction -- backflush desorption
SOLID-PHASE EXTRACTION
LIQUID-CHROMATOGRAPHY
ELECTROCHEMICAL DETECTION
TRACE ENRICHMENT
AQUEOUS SAMPLES
CHLOROPHENOLS
POLAR
MICROEXTRACTION
SUBSTANCES
SORBENTS
Кл.слова (ненормированные):
phenols -- natural water -- potable water -- high-performance liquid chromatography -- sorption preconcentration -- solid-phase extraction -- backflush desorption
Аннотация: The conditions of the sorption preconcentration of phenols from samples of natural and potable waters in Diapak P concentrator cartridges filled with super-cross-linked polystyrene are optimized. Countercurrent desorption with acetonitrile or methanol ensures the elimination the step of organic solvent evaporation. The observed reduction of the sorption of humic and fulvic acids (HFA) on the addition of sodium sulfite to the samples of natural and potable waters prior to their processing probably relates to the change of pH. The preconcentration of phenols from natural and potable waters at pH 6-8 substantially reduces the sorption of HFA. The method is used to determine phenols in samples of tap water and water from the Yenisei river by the added-found method.
WOS
Держатели документа:
[Sursyakova, V. V.
Burmakina, G. V.
Rubaylo, A. I.] Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia
[Burmakina, G. V.
Rubaylo, A. I.] Siberian Fed Univ, Dept Chem & Met, Krasnoyarsk 660041, Russia
ИХХТ СО РАН
Доп.точки доступа:
Sursyakova, V.V.; Burmakina, G.V.; Rubaylo, A.I.