SPECIMEN FILLING DEVICE, SPECIMEN FILLING METHOD, AND LIQUID CHROMATOGRAPHY DEVICE WITH THE SPECIMEN FILLING DEVICE

SPECIMEN FILLING DEVICE, SPECIMEN FILLING METHOD, AND LIQUID CHROMATOGRAPHY DEVICE WITH THE SPECIMEN FILLING DEVICE

A sample injection apparatus and sample injection method capable of sufficiently reducing carry-over, having simple cleaning means for a short cleaning time period, a small influence of vibration of the cleaning means, and a small error in the amount of injected sample and preventing the durability...

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Hauptverfasser: SHIROTA, OSAMU, TOGASHI, YUKI, OHKUBO, AYA
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PHYSICS
TESTING
TRANSPORTING
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creator SHIROTA, OSAMU
TOGASHI, YUKI
OHKUBO, AYA
description A sample injection apparatus and sample injection method capable of sufficiently reducing carry-over, having simple cleaning means for a short cleaning time period, a small influence of vibration of the cleaning means, and a small error in the amount of injected sample and preventing the durability of a sampling needle from being lowered, and a liquid chromatography apparatus having the sample injection apparatus are provided. The sample injection apparatus has a sampling vessel 14 into which a sample is supplied, a sampling needle 10 for aspirating and ejecting the sample, a cleaning part 17 into which a cleaning liquid for cleaning at least the sampling needle 10 is supplied, a sample injection part 15 for injecting the sample ejected from the sampling needle 10 into a moving liquid, and needle transfer means for transferring the sampling needle 10 among the sampling vessel 4, the cleaning part 17 and the sample injection part 15, wherein the cleaning part 17 has an ultrasonic vibrator for generating an ultrasonic wave in the cleaning liquid.
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subjects CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PHYSICS
TESTING
TRANSPORTING
title SPECIMEN FILLING DEVICE, SPECIMEN FILLING METHOD, AND LIQUID CHROMATOGRAPHY DEVICE WITH THE SPECIMEN FILLING DEVICE
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