Gradient liquid feed device for sample analyzer

Gradient liquid feed device for sample analyzer

A gradient liquid feed device allows reduction in size of a high performance liquid chromatography type sample analyzer. The gradient liquid feed device includes a plurality of carrier liquid reservoir tanks configured to store carrier liquids of mutually different compositions, a plurality of singl...

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Hauptverfasser: Oka, Takayuki, Yotani, Takuya, Muraki, Hideki, Taira, Hiroaki
Format: Patent
Sprache:eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator Oka, Takayuki
Yotani, Takuya
Muraki, Hideki
Taira, Hiroaki
description A gradient liquid feed device allows reduction in size of a high performance liquid chromatography type sample analyzer. The gradient liquid feed device includes a plurality of carrier liquid reservoir tanks configured to store carrier liquids of mutually different compositions, a plurality of single plunger pumps capable of drawing and discharging the carrier liquid from the plurality of carrier liquid reservoir tanks, a mixer configured to mix the carrier liquids discharged from the plurality of liquid feed pumps and feed the mixed carrier liquid, and a pulse damper in communication with the mixer and configured to absorb pulsation that may occur during liquid feeding. The single plunger pumps have a function for variably setting a length of stroke for drawing and discharging the carrier liquid and a function for variably setting a ratio between the carrier liquid drawing time and the carrier liquid discharge time.
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Gradient liquid feed device for sample analyzer
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