B U N S E K I K A G A K U
Vol. 47 No. 4
April, 1998
Original Papers
Determination of Trace Amounts of Sulfur in Iron and Steel by Isotope Dilution
ICP-MS with a Hydrogen Sulfide Evolution Technique
Hirohito Naka, Hirohumi Kurayasu, Li Ma and Taketoshi Nakahara 203
Speciation of Inclusions in Aluminium by X-ray Diffraction and Fluorescence
Methods Combined with Preconcentration by Filtration and Selective Dissolution
Teruo Kitamura, Shigemi Tanimoto, Masaaki Iwatsuki and Shintaro Nishida 211
Submilligram Determination of Organic Sulfur Using Sealed Tube
Combustion Method
Keiichiro Hozumi, Ayako Satoh and Naoshige Akimoto 219
Fluorimetric Flow Injection Analysis of the Total Amounts of Low-Molecular-
Weight Aldehydes in Rain Water
Harumitsu Nishikawa, Hideki Nagasawa and Tadao Sakai 225
Direct Determination of High-Density Lipoprotein- and Total Cholesterol
in Serum Using a Peroxidase-Entrapped Electrode and
Polyethylene Glycol-Modified Enzymes
Hideaki Kinoshita, Takeo Chijiwa, Masaki Torimura, Kenji Kano and Tokuji Ikeda 233
Technical Papers
Interlaboratory Studies for the Analysis of Metal Ions in Solution by Isotope
Dilution/ICP-MS
Naoko Nonose, Akiharu Hioki, Masayasu Kurahashi and Masaaki Kubota 239
Notes
Substituent Effect by Chlorine, Bromine and Iodine Atoms for 13C and 29Si NMR
Chemical Shifts in Halogenated Methane and Halogenated Silane
Takayuki Abe, Yasuhide Ohuchi and Chikakiyo Nagata 249
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