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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 292 (1978), S. 362-364 
    ISSN: 1618-2650
    Keywords: Best. von Siliciumorganoverbindungen in Wasser ; Spektralphotometrie, Atomabsorption ; Extraktionsverfahren
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary An extraction technique is described for the determination of ppm concentrations of both hydrophobic and hydrophilic methylsiloxane compounds in water, based on a single extraction with a mixed solvent of (1∶1) l-pentanol and methyl isobutyl ketone followed by the determination of the silicone compounds extracted into the mixed solvent by atomic absorption spectroscopy. The method is applicable over the concentration range 0.3–30 ppm Si. Standard deviation in the case of 10 ppm Si is 0.313.
    Notes: Zusammenfassung Zur Bestimmung von ppm-Konzentrationen an hydrophoben und hydrophilen Methylsiloxanverbindungen im Wasser wird ein Extraktionsverfahren beschrieben. Hierbei wird nach einfacher Extraktion mit l-Pentanol/Methylisobutylketon (1∶1) das Silicium im Extrakt mit Hilfe der AAS bestimmt. Der erfaßbare Konzentrationsbereich liegt bei 0,3–30 ppm Si. Die Standardabweichung beträgt bei 10 ppm Si 0,313.
    Type of Medium: Electronic Resource
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