Kabushiki Kaisha Toyota Chuo Kenkyusho

Yuri Sasaki

Norihiro Mizoshita

Yasutomo Goto

Masakazu Murase

Shinji Inagaki

The present invention provides a sample plate for laser desorption/ionization mass spectrometry, comprising: a hydrophilic thin film capable of absorbing a laser ray; and a water-repellent thin film comprising surface-hydrophobized nanoparticles and being stacked in a region other than a region to be a sample spot on a surface of the hydrophilic thin film, wherein a water contact angle of the water-repellent thin film is 120&#xb0; or more.

Sample plate for laser desorption/ionization mass spectrometry

An organic silica thin film including: organic silica having a light absorbable organic group in a skeleton, wherein the organic group has a local maximum absorption wavelength in a wavelength range of 200 to 1200 nm, a content ratio of silicon and the organic group which constitute the organic silica is in a range of 0.05 to 0.50 based on a ratio of a mass of the silicon to a mass of the organic group ([mass of the silicon]/[mass of the organic group]), the thin film has a textured structure, and an axis direction of the textured structure is a direction substantially perpendicular to a surface opposite to a surface of the organic silica thin film having the textured structure formed therein.

Organic silica thin film, method for producing the same, laser desorption/ionization mass spectrometric substrate using the same, and laser desorption/ionization mass spectrometric method

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Nagakute, Japan

Yuri Sasaki