High pressure modification of the simple automated liquid chromatographic system for splitless nano column gradient separations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F13%3APU106482" target="_blank" >RIV/00216305:26310/13:PU106482 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

High pressure modification of the simple automated liquid chromatographic system for splitless nano column gradient separations

Original language description

In this work we have modified our concept of simple splitless gradient liquid chromatographic system for micro and nano columns with backpressure up to 50 bar. Presented configuration allows us to run analysis under the pressure up to 400 bar. Experimental configuration consists of an OEM programmable syringe pump equipped with a 250-ul high-pressure syringe and ten-port selector valve. High pressure syringe is connected to central port of selector valve via 0.5 meter long PEEK capillary of 380 um i. d.fixed in horizontal plane. PEEK capillary here serves as gradient generator as well as gradient loop and as sample loop. Mobile phase gradients are created by successive sucking of defined volumes of four water-acetonitrile solutions with gradually changing acetonitrile concentration into the PEEK capillary. Sharp mobile phase boundaries fade out while passing through the valve body and due to the parabolic profile of laminar flow as well as due to diffusion. Available linear gradients

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemické listy

ISSN

1213-7103

e-ISSN

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Volume of the periodical

107

Issue of the periodical within the volume

s3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

3

Pages from-to

438-440

UT code for WoS article

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EID of the result in the Scopus database

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