The University of Tokyo

Asahi Kasei Kabushiki Kaisha

Hiroki Takezawa

Hiroyuki Arai

Makoto Fujita

Noboru Kubota

Tomotaka Hashimoto

Takehiko Otoyo

Kazuto Nagata

Daishi Fujita

Yuya Domoto

The present invention provides a novel method for identifying a molecular structure by a single crystal X-ray analysis. A single crystal that gives an X-ray diffraction spectrum sufficient for determining a structure of a molecule can be efficiently obtained by including a test molecule in a metal complex, and then crystallizing the test-molecule included in the metal complex. By analyzing this single crystal by an X-ray analysis, it is possible to determine a structure of the test molecule without obtaining a single crystal of the test molecule. With the novel method according to the present invention, the structure of a test molecule in a trace amount of a sample can also be determined.

Method for identifying molecular structure

A membrane distillation device, provided with a membrane distillation module including a plurality of hydrophobic porous hollow fiber membranes, and a condenser for condensing water vapor extracted from the module. The average pore diameter of the porous hollow fiber is 0.01-1 &#x3bc;m. The filling ratio of the porous hollow fiber of the membrane distillation module is 10-80%, and the pressure condition for the membrane distillation is equal to or greater than 1 kPa and equal to or less than the saturated vapor pressure of water at the temperature of the water being treated.

Porous membrane for membrane distillation, and method for operating membrane distillation module

Growing community of inventors

Tokyo, Japan

Hiroki Takezawa