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Tunnel frit: a nonmetallic in-capillary frit for nanoflow ultra high-performance liquid chromatography-mass spectrometryapplications.

In this study, an easy method to fabricate a durable in-capillary frit was developed for use in nanoflow liquid chromatography (nanoLC). A small orifice was tunneled into the sol-gel frit during the polymerization process resulting in the simple fabrication of a tunnel frit. A short packing tunnel f... Full description

Journal Title: Analytical chemistry January 3, 2012, Vol.84(1), pp.297-303
Main Author: Chen, Chao-Jung
Other Authors: Chen, Wei-Yun , Tseng, Mei-Chun , Chen, Yet-Ran
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1520-6882 ; DOI: 1520-6882 ; DOI: 10.1021/ac202549y
Link: http://search.proquest.com/docview/916523048/?pq-origsite=primo
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title: Tunnel frit: a nonmetallic in-capillary frit for nanoflow ultra high-performance liquid chromatography-mass spectrometryapplications.
format: Article
creator:
  • Chen, Chao-Jung
  • Chen, Wei-Yun
  • Tseng, Mei-Chun
  • Chen, Yet-Ran
subjects:
  • Chromatography, High Pressure Liquid–Instrumentation
  • Mass Spectrometry–Instrumentation
  • Metals–Chemistry
  • Microscopy, Electron, Scanning–Chemistry
  • Metals
ispartof: Analytical chemistry, January 3, 2012, Vol.84(1), pp.297-303
description: In this study, an easy method to fabricate a durable in-capillary frit was developed for use in nanoflow liquid chromatography (nanoLC). A small orifice was tunneled into the sol-gel frit during the polymerization process resulting in the simple fabrication of a tunnel frit. A short packing tunnel frit column (2 cm, ... particles) was able to sustain over 10 000 psi continuous liquid flow for 10 days without observation of particle loss, and back pressure variation was less than 5%. The tunnel frit was successfully applied to the fabrication of nanoflow ultra high-performance liquid chromatography (nano-UHPLC) trap and analytical columns. In the analysis of tryptic peptides, the tunnel frit trap and analytical columns were demonstrated to have high separation efficiency and sensitivity. In analysis of phosphopeptides, the use of the nonmetallic tunnel frit column showed better sensitivity than the metallic frit column. This design can facilitate the preparation of nano-HPLC and nano-UHPLC columns and the packing material can easily be refilled when the column is severely contaminated or clogged. (ProQuest: ... denotes formulae/symbols omitted.)
language: eng
source:
identifier: E-ISSN: 1520-6882 ; DOI: 1520-6882 ; DOI: 10.1021/ac202549y
fulltext: no_fulltext
issn:
  • 15206882
  • 1520-6882
url: Link


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titleTunnel frit: a nonmetallic in-capillary frit for nanoflow ultra high-performance liquid chromatography-mass spectrometryapplications.
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descriptionIn this study, an easy method to fabricate a durable in-capillary frit was developed for use in nanoflow liquid chromatography (nanoLC). A small orifice was tunneled into the sol-gel frit during the polymerization process resulting in the simple fabrication of a tunnel frit. A short packing tunnel frit column (2 cm, ... particles) was able to sustain over 10 000 psi continuous liquid flow for 10 days without observation of particle loss, and back pressure variation was less than 5%. The tunnel frit was successfully applied to the fabrication of nanoflow ultra high-performance liquid chromatography (nano-UHPLC) trap and analytical columns. In the analysis of tryptic peptides, the tunnel frit trap and analytical columns were demonstrated to have high separation efficiency and sensitivity. In analysis of phosphopeptides, the use of the nonmetallic tunnel frit column showed better sensitivity than the metallic frit column. This design can facilitate the preparation of nano-HPLC and nano-UHPLC columns and the packing material can easily be refilled when the column is severely contaminated or clogged. (ProQuest: ... denotes formulae/symbols omitted.)
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