HPLC Sample Injection Using Electric Valve Actuators

HPLC Sample Injection Using Electric Valve Actuators

The ‘moving-injection technique,’ based on an electrically actuated HPLC valve, injects very small samples (ca. 0.008 μl) directly onto HPLC columns. The injected samples have lower than usual injector variance contribution because laminar flow sample dilution with the mobile phase is eliminated. Th...

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Veröffentlicht in:Journal of chromatographic science 1983-10, Vol.21 (10), p.473-477
Hauptverfasser: Harvey, Mack C., Stearns, Stanley D.
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Gas chromatographic methods
Other chromatographic methods
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Beschreibung
Zusammenfassung:The ‘moving-injection technique,’ based on an electrically actuated HPLC valve, injects very small samples (ca. 0.008 μl) directly onto HPLC columns. The injected samples have lower than usual injector variance contribution because laminar flow sample dilution with the mobile phase is eliminated. This technique can also be used to control the size of sample injection. Samples of 6- to 100-μl size can be injected from a single 100-μl loop when a data system is used to control the electric valve actuator.
ISSN:0021-9665
1945-239X
DOI:10.1093/chromsci/21.10.473