Determination of chlorophenols in waste water using C18 reverse-phase enrichment prior to high resolution gaschromatography-mass spectrometry

Nielsen, P. G.

doi:10.1007/bf02259086

Cited by 21 publications

(4 citation statements)

References 6 publications

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“…For example, tetralkyl quaternary ammonium p-toluenesulfonate salts can be used for the separation and IPD of inorganic and organic anions (1, 2, 14-17). A third IPD strategy is based on association type equilibria that can occur between a nonionic analyte and chromophoric nonelectrolyte additive in the mobile phase (18)(19)(20). This permits non-0003-2700/88/0360-0454501.50/0 © 1988 American Chemical Society…”

Section: Discussionmentioning

confidence: 99%

Organics in water: solid phase extraction on a small scale

Junk¹,

Richard²

1988

Anal. Chem.

228

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Octadecyl (C-18) bonded to porous silica has been evaluated for the solid-phase extraction (SPE) of organic compounds from water. Excellent performance was deduced from average recovery of >85% for pesticides and polycyclic organic materials present In contrived water samples at 1-10 ng/mL. Extraction results showed effective performance of the SPE when 1-100 mL of water was passed through small columns containing 40-100 mg of 40-µ C-18 bonded porous silica at flow rates as high as 250 bed volumes/mln. The adsorbed compounds were removed by collecting 60-100 µ of either ethyl acetate or benzene eluate. The unique feature of this research Is the combination of small water volumes, fast flow rates, small columns, and small eluate volumes that obviate solvent removals prior to GC analysis, while still retaining all the other advantageous features of SPE. Excellent performance was also confirmed In tests of environmental waters where the results based on SPE agreed with those based on accepted classical extractions.

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Section: Discussionmentioning

confidence: 99%

Organics in water: solid phase extraction on a small scale

Junk¹,

Richard²

1988

Anal. Chem.

228

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“…Concern about the sources, fate and environmental impact of OC compounds in the aquatic environment has stimulated the development of a variety of sensitive and complex analytical methods for their determination at trace levels both in water and in soil/sediment samples. These methods generally include a preconcentration step which is accomplished either by direct solvent extraction [5,[15][16][17] or by adsorption and subsequent elution from an appropriate adsorbent [17][18][19][20]. High-resolution capillary gas chromatography (HRGC) with electron capture and mass spectrometric detection enables reliable identification and trace levels quantification of target compounds.…”

Section: Analysis Of Pcbs Oc Pesticides and Cps In Water And Soil/sementioning

confidence: 99%

“…High-resolution capillary gas chromatography (HRGC) with electron capture and mass spectrometric detection enables reliable identification and trace levels quantification of target compounds. Before gas chromatographic analysis, chlorophenols are usually converted into less polar derivatives although gas chromatographic [20] and high performance liquid chromatographic [7] procedures for analysis of non-derivatized chlorophenols are also described.…”

Section: Analysis Of Pcbs Oc Pesticides and Cps In Water And Soil/sementioning

confidence: 99%

Persistent organochlorine compounds in water and soil environments

Drevenkar

Fingler

Fröbe

et al. 1996

Environmental Management and Health

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Reviews compound physico‐chemical properties and water and soil properties influencing the transport and distribution of organochlorine pesticides, polychlorinated biphenyls (PCBs) and chlorophenols in a water and soil environment. As highly hydrophobic compounds of low water solubility, organochlorine pesticides and PCBs are rapidly and strongly sorbed by most soils and sediments. The sorption of weakly acidic chlorophenols comprises both molecular and ionic forms and depends not only on the soil/sediment organic matter content but also on the pH and ionic strength of the aqueous phase. Briefly describes the analytical methods for trace analysis of organocholorine pesticides, PCBs and chlorophenols in water and soil/sediment samples. Presents some results of those micropollutants’ analysis in surface, ground and drinking waters, soils, river sediments and wet depositions in Croatia.

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“…Chlorophenols are separated from the aqueous phase by SPE using C18, C8, charcoal, or non-polar resins as sorbents [10,11], and by SPME [12]. Some methods recom-mend distillation and liquid/liquid extraction [13,14].…”

Section: Introductionmentioning

confidence: 99%

Qualitative and quantitative determination of halogenated derivatives in wastewater from coking plant

Czaplicka¹

2003

J of Separation Science

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Qualitative and quantitative determination of halogenated derivatives in wastewater from coking plant This paper describes a modification of the EPA 625 method for determination of chlorobenzenes and chlorophenols in wastewater containing pyridine bases. The method modification consists in introduction of an additional liquid/liquid extraction step for isolation, from the samples under investigation, of pyridine and quinoline bases, and also fractions consisting of benzene, its homologues, and its halogenated derivatives. The modified method has been used to determine the concentrations of chlorobenzenes and chlorophenols present in coking wastewater.

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Determination of chlorophenols in waste water using C18 reverse-phase enrichment prior to high resolution gaschromatography-mass spectrometry

Cited by 21 publications

References 6 publications

Organics in water: solid phase extraction on a small scale

Organics in water: solid phase extraction on a small scale

Persistent organochlorine compounds in water and soil environments

Qualitative and quantitative determination of halogenated derivatives in wastewater from coking plant

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