Briefs Continuous Flow High Field Nuclear Magnetic Resonance Detector for Liquid Chromatographic 2327 Analysis of Fuel Samples Detection limits are on the order of 10 µ% for injection volumes of 10-25 pL. Analyses of a model mixture and of two experimental petroleum-based fuel samples are presented. James F. Haw, T. E. Glass, and H. C. Dorn*, Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Va. 24061
Anal. Chem., 53 (1981)
Analysis of Coal Conversion Recycle Solvents by Liquid Chromatography with Nuclear Magnetic Resonance Detection 2332 a of coal solvent and of a Analyses recycle hydrotreated
are discussed in terms of the solvent’s role in NMR and LC-GC/MS are liquefaction. LCcomplementary for volatile samples. James F. Haw, T. E. Glass, and H. C. Dorn*, Department of
sample
Chemistry, Virginia Polytechnic Institute and State University, Anal. Chem., 53 (1981) Blacksburg, Va. 24061
Preconcentration of Trace Elements from Seawater with Silica-Immobilized 8-Hydroxyquinoline 2337 Cd, Pb, Zn, Cu, Fe, Mn, Ni, and Co are preconcentrated on silica-immobilized 8-hydroxyquinoline prior to determination by graphite furnace atomic absorption spectrometry. One open-ocean and two near-shore
seawater samples are analyzed. R. E. Sturgeon*, S. S. Berman, S. N. Willie, and J. A. H. Desaulniers, Division of Chemistry, National Research Council of Canada, Montreal Road, Ottawa, Ontario, Canada K1A 0R9 Anal. Chem., 53 (1981)
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Secondary Ion Mass Spectra of Nonvolatile Bioorganic 2340 Compounds Cationized molecules are observed for stachyose, rutin, and antibiotics. The effects of alkali salts and temperature on the spectra are discussed. Hideki Kambara*, Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo 185, Japan, and Shinzaburo Hishida, Naka Works, Hitachi Ltd., Katsuta, Ibaragi 312, Japan Anal. Chem., 53 (1981)
Correspondence Isotopic Abundance Determinations by Inductively Coupled Plasma Atomic Emission Spectrometry 2345 Martin C. Edelson* and Velmer A. Fassel, Ames Laboratory— USDOE, Iowa State University, Ames, Iowa 50011
Anal. Chem., 53 (1981)
Effect of Molecular Size, Ionic Strength, and pH Retentions of Aromatic Acids on XAD-8 Resins
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Michael A. Curtis and L. B. Rogers*, Department of Chemistry, University of Georgia, Athens, Ga. 30602 Anal. Chem., 53 (1981)
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ANALYTICAL CHEMISTRY, VOL. 53, NO. 14, DECEMBER 1981
