The Free-Running-Type Equilibrium Ultracentrifuge

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概要

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• The construction of a free-running-type equilibrium ultracentrifuge is reported in this paper. A centrifuge rotor, made of steel, weighing about 12 kg, is suspended magnetically in the vacuum chamber, the pressure of which is less than 10^<-5> mmHg, and its position is controlled automatically. Acceleration of the rotor to operating speed and braking of the running rotor are done by the driving motor whose shaft is connected to the rotor by a stainless steel rod. During the sedimentation experiment, the rod is disconnected from the rotor and then the rotor is kept running freely by its own moment of inertia. The sedimentation is observed with either a Rayleigh interferometer or a Schlieren optical system. Experiments on molecular weight determinations of digitonin gave good results.

• 一般社団法人日本機械学会の論文

著者

• Miyazawa Yuji

  Faculty Of Science Tokyo Kyoiku University

• GOTO Yasuyuki

  Hitachi Central Research Laboratory

• SUDO Takuro

  Hitach Central Research Laboratory

• Goto Y.

  Hitachi Central Research Laboratory

関連論文

• The Free-Running-Type Equilibrium Ultracentrifuge

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