Volltext-Downloads (blau) und Frontdoor-Views (grau)
The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 52 of 1676
Back to Result List

Development of a low pressure syringe pump for detecting cannabinoids through liquid chromatography

  • The following thesis covers the miniaturization and characterization of a pneumatic syringe pump, which is used for applications in low-pressure liquid chromatography. For this purpose, the components of the prototype are dealt with in the first section. These include the membrane pump and the cylinder for pressure and force generation, the syringe used for sample preparation and the construction of the test column. Furthermore, the pressure preparation on the cylinder, the friction losses of the syringe and then the behavior of the syringe in various application scenarios are considered. In the second section, the focus is on the different behaviors when using water and ethanol as a solvent. Tests in normal applications, as well as with air pockets or leaking seals, show the different behavior and the resulting deviations in the test pressure of the column. In addition, the maximum forces that can be applied to the syringe are worked out in several tests and the different maximum pressures, which depend on the solvent contained, are evaluated. These different maximum pressures, which are due to the different sealing behavior in connection with the surface tension of the liquid, will be discussed in conclusion. An outlook follows, up to which test pressures the system can be used and how these can be achieved.

Download full text files

Export metadata

Additional Services

Search Google Scholar
Metadaten
Author:Pascal Prehofer
DOI:https://doi.org/10.25924/opus-4618
Title Additional (German):Entwicklung einer Niederdruck-Spritzenpumpe zum Nachweis von Cannabinoiden mittels Flüssigchromatographie
Advisor:Stefan Partel
Document Type:Master's Thesis
Language:English
Year of publication:2022
Publishing Institution:FH Vorarlberg (Fachhochschule Vorarlberg)
Granting Institution:FH Vorarlberg (Fachhochschule Vorarlberg)
Release Date:2022/10/17
Tag:low pressure liquid chromatography; pneumatic syringe pump; slip-stick effect; young-laplace equation
Number of pages:XI, 88
DDC classes:600 Technik, Medizin, angewandte Wissenschaften
Open Access?:ja
Course of Studies:Mechatronics
Licence (German):License LogoUrhG - The Austrian Copyright Act applies - Es gilt das österr. Urheberrechtsgesetz