| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for grasping the form of the fatty acid type dispersant present in an inorganic colloid solution to quantify the amount of the fatty acid type dispersant. SOLUTION: An inorganic metal colloid solution in a state that an inorganic metal powder is present is directly observed by a Fourier transform nuclear magnetic resonance spectrometry. The inorganic metal colloid solution in the state that the inorganic metal powder is present is directly observed by the Fourier transform nuclear magnetic resonance spectrometry using the measuring double pipe of the Fourier transform nuclear magnetic resonance spectrometry to measure the undissociated amount of fatty acid. A liquid which is prepared by dissolving a metal powder in the inorganic metal colloid solution using 0.01-20% nitric acid is observed to measure the whole dissociated amount of fatty acid. The fatty acid chemically bonded to the inorganic metal powder is quantified from the respective quantified values obtained by measuring the dissociated fatty acid in the inorganic metal colloid solution and the whole fatty acid by the Fourier transform nuclear magnetic resonance spectrometry. COPYRIGHT: (C)2007,JPO&INPIT
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