Konica Minolta, Inc.

Nihon Medi-Physics Company, Limited

Teramecs Co., Ltd.

Otsuka Pharmaceutical Company, Limited

Atsushi Hosotani

Tetsuya Noda

Atsuo Iwashita

Yuuya Shouji

Shigeru Fujioka

Hiromi Fujii

Tadao Yamaguchi

Takayuki Taguchi

Makoto Morishita

Yasuhiro Miyake

Hisashi Motokawa

Takefumi Asou

A pipette tip leading end detection device for detecting that a leading end of a pipette tip is close to a reference surface set to a reaction vessel includes a pipette nozzle, pump, nozzle driver, pressure sensor that detects a pressure generated between the pipette tip and pump, and hardware processor. The hardware processor obtains a determination value using an AD conversion value obtained from the pressure while the pipette nozzle is being lowered, and detects that the leading end of the pipette tip is close to the reference surface on the basis that the determination value is a threshold value or more. The determination value is a calculation value indicating a pressure change speed calculated from AD conversion values within a past certain time and the threshold value is a value larger than maximum noise.

Device for detecting leading end of pipette tip, and storage medium storing program for detecting leading end of pipette tip

In a method of measuring optical characteristics of a component in a liquid impregnated in a porous material with no affection by the porous material, a light beam having an absorbable wavelength which is absorbed by the component in the liquid and a light beam having a wavelength which is longer than the absorbable wavelength are projected to the porous material, and a quantity of light having the wavelength which is absorbed by the component in the liquid is compensated by a quantity of transmitted light having the wavelength longer than the absorbable wavelength.

Method of optically measuring liquid in porous material

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Kyoto, Japan

Atsushi Hosotani