GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1995-1999  (3)
Document type
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Determination of persistent organochlorine compounds in blood by solid phase micro extraction and GC-ECD (1998)
    Springer
    Fresenius' journal of analytical chemistry 361 (1998), S. 192-196 
    Details
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Biomonitoring of persistent organochlorine compounds in blood using the solid phase microextraction technique (SPME) and gas chromatography with electron capture detection (GC-ECD) is described. Polar substances as tri-, tetra- and penta-chlorophenols are analyzed simultaneously with less polar compounds such as hexachlorobenzene (HCB), α-, β-, and γ-hexachlorocyclohexane (HCH), dichlorodiphenyltrichloroethane (DDT) and its derivatives and with some important congeners of the polychlorinated biphenyls (PCB). No derivatization is needed for the determination of the phenolic compounds. The results show a good reproducibility down to the lower μg/L-region. The method is very fast and of low cost compared to the classic extraction and determination procedures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002160050860
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Studies about the desorption of volatile halocarbons from activated carbon by application of static headspace gas chromatography (1995)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 353 (1995), S. 219-221 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The analysis of volatile halocarbons (VHCs) in air or ground air is often performed after their adsorption and enrichment on activated carbon. The current procedure for their subsequent determination is based on their extraction from the activated carbon with a volatile organic solvent such as n-pentane, followed by gaschromatographic (GC) analysis. In order to avoid extraction steps, the static headspace method in combination with GC analysis using diphenylmethane as a desorption agent has been applied. Satisfactory desorption rates for the chloromethanes, for 1,1,1-trichloroethane, trichloroethene and for tetrachloroethene have been obtained after a sample equilibration of 45 min at 120° C in the presence of diphenylmethane. The results have shown a higher recovering rate especially of the unsaturated VHCs compared to the extraction with n-pentane, whereby a potential loss of analytes by the latter procedure has been avoided.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s0021653530219
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Studies about the desorption of volatile halocarbons from activated carbon by application of static headspace gas chromatography (1995)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 353 (1995), S. 219-221 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The analysis of volatile halocarbons (VHCs) in air or ground air is often performed after their adsorption and enrichment on activated carbon. The current procedure for their subsequent determination is based on their extraction from the activated carbon with a volatile organic solvent such as n-pentane, followed by gaschromatographic (GC) analysis. In order to avoid extraction steps, the static headspace method in combination with GC analysis using diphenylmethane as a desorption agent has been applied. Satisfactory desorption rates for the chloromethanes, for 1,1,1-trichloroethane, trichloroethene and for tetrachloroethene have been obtained after a sample equilibration of 45 min at 120°C in the presence of diphenylmethane. The results have shown a higher recovering rate especially of the unsaturated VHCs compared to the extraction with n-pentane, whereby a potential loss of analytes by the latter procedure has been avoided.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00322963
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...