Ultramicro elemental analysis (Tolg, Gunther)
نویسندگان
چکیده
منابع مشابه
Developments in Quantitative Organic Ultramicro Elementary Analysis
Numerous principles for the mineralization of samples and for the measurement of the elements have been tried since the days of Liebig, Dumas, Dennstedt and Pregl. Attempts to develop accurate and reliable ultramicro methods have been successful only in recent years. Almost absolutely quantitative recovery of the analyte from the mineralization process, freedom from risk of contamination, and v...
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A simple technique has been described by Wigglesworth (1937) for the determination of chloride in as little as 0-3 ,ul. of fluid. This is based on the Volhard titration and has been used in this Laboratory since 1947 for the examination of fish and crustacean blood. While the results obtained were satisfactory, the tedious back titration and the comparatively impermanent end point were found to...
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We explore the possibility for elemental analysis by NMR. To keep the efficiency of the signal acquisition common for all spin species, we propose to fix the frequency and vary the magnetic field to cover the isotopes involved in a sample. We introduce constant-frequency receptivity for quantitative elemental analysis in the frequency-fixed NMR experiment. Field-variable NMR experiments are dem...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1972
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed049pa44.1