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1. (WO2017149787) ABSORBANCE DETECTOR AND CHROMATOGRAPH PROVIDED WITH SAME

Pub. No.:    WO/2017/149787    International Application No.:    PCT/JP2016/062877
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Tue Apr 26 01:59:59 CEST 2016
IPC: G01N 21/33
G01N 21/01
Applicants: SHIMADZU CORPORATION
株式会社島津製作所
Inventors: NAKAMURA, Takafumi
中村 恭章
Title: ABSORBANCE DETECTOR AND CHROMATOGRAPH PROVIDED WITH SAME
Abstract:
Provided are an absorbance detector and a chromatograph with which it is possible to constantly obtain a maximum quantity of light without suppressing a drive current, even when disposed within a column oven. The present invention is provided with: a light-emitting unit 21 having LED elements 21a, 21b; a light-receiving unit 22 having a photodiode 22a; an absorbance detector cell 20 comprising a cell 23 in which a specimen is accommodated, the absorbance detector cell 20 being disposed between the light-emitting unit 21 and the light-receiving unit 22; an LED control unit 31a for outputting a drive current to the LED elements 21a, 21b; and a temperature sensor 21d for detecting the surrounding temperature around the LED elements 21a, 21b. The LED control unit 31a determines an upper-limit value for the drive current outputted to the LED elements 21a, 21b on the basis of the surrounding temperature detected by the temperature sensor 21d.