Eisai Company, Limited

Eisai R&d Management Co., Ltd.

Nariyasu Mano

Naoki Asakawa

Kaoru Murata

Yutaka Yoshida

Tadashi Sato

Hachiro Sugimoto

Masahiro Yonaga

Taro Terauchi

Takashi Doko

Yoshiya Oda

Yasushi Ishihama

Naoki Asai

Yukio Nishizawa

Toshinobu Miwa

Akinori Akaike

Device for improving detection sensitivity in low flow velocity high performance liquid chromatographic apparatus. Preferredly, diffusion promoting device connected at just before separation column and having function of improving detection sensitivity for use in low flow velocity high performance liquid chromatographic apparatus. Also, method for improving detection sensitivity in low flow velocity high performance liquid chromatographic apparatus.

Diffusion promoting device for low flow velocity gradient high performance liquid chromatography

The present invention provides a novel compound exhibiting an excellent suppressing effect to cell injury caused by radicals and neurotoxicity induced by excitatory nuerotransmitters such as glutamate. Specifically, it provides a compound represented by the following formula, a salt thereof or a hydrate of them. Wherein Z represents a bivalent organic group and the like of from 2 to 3 carbon atom(s) which may have a substituent; and Rrepresents a carboxyl group and the like.

Atisane compounds and use thereof

The present invention provides a device for improving detection sensitivity and a method for improving the detection sensitivity for use in a low flow velocity high performance liquid chromatographic apparatus. That is, the present invention is a diffusion promoting device connected at just before a separation column and having a function for improving detection sensitivity for use in a low flow velocity high performance liquid chromatographic apparatus.

Diffusion promoting apparatus for low flow velocity gradient high-speed liquid chromatography

The present invention provides a device capable of simply formulating an arbitrary gradient pattern in a low flow gradient high performance liquid chromatography. That is, the present invention provides a split tubing apparatus for a gradient high performance liquid chromatography, which comprises a solvent inlet part, a split tubing part split into two or more plural tubes, and a solvent outlet part.

Splitted tubing apparatus for gradient high performance liquid chromatography

Separating agent comprising bonded conalbumin

Growing community of inventors

Ibaraki, Japan

Nariyasu Mano