Title :
An NMR method of measuring the mass of magnetic beads in a low density fluid [biomedical measurement]
Author :
Nagaya, Kosuke ; Yoshida, Akira ; Ikai, Shigeo ; Yamamoto, Tetsuya ; Yokoyama, Nobuyuki ; Nagai, Kenicki
Author_Institution :
Dept. of Mech. Eng., Gunma Univ., Japan
fDate :
2/1/1991 12:00:00 AM
Abstract :
A nuclear magnetic resonance (NMR) method of determining the mass of the magnetic particles present in a fluid by observing the relative frequency shift of an NMR signal is proposed. Experimental tests have been carried out to find the ratio of the mass of the beads to the total mass of the liquid with various densities by using this method. The method can be used to measure masses in a fluid containing a low concentration of magnetic particles
Keywords :
biomagnetism; biomedical NMR; biomedical measurement; magnetic fluids; mass measurement; NMR; bioengineering; blood; low density fluid; magnetic beads; magnetic particles; mass measurement; nuclear magnetic resonance; relative frequency shift; Biomedical measurements; Density measurement; Frequency measurement; Magnetic flux; Magnetic liquids; Magnetic resonance; Magnetic separation; Nuclear magnetic resonance; Resonant frequency; Saturation magnetization;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
