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New liquid chromatography/electron ionization mass spectrometry methods in water analysis.
- Source :
-
Annali di chimica [Ann Chim] 2002 Jul-Aug; Vol. 92 (7-8), pp. 623-36. - Publication Year :
- 2002
-
Abstract
- A method to extract and analyze organic compounds from water is presented. A solid phase micro-trap (micro-SPE) directly connected to the micro-analytical column is used. Sensibility and specificity needed for trace analysis are guaranteed by mass spectrometric electron ionization (EI) detection. A new micro-HPLC/EI-MS interface called Capillary-EI (Cap-EI) is described. The ultimate evolution of this interface is also presented: in this extremely simplified interface the analytes are nebulized, vaporized and ionized in the small volume of the ion source. This interface, called Direct-EI, exploits nano- and micro-HPLC columns with a mobile phase flow rates ranging from 0.3 to 1.5 microL/min. Contemporary use of micro SPE, Cap-EI or Direct-EI gives us a powerful technique to identify and quantify organic pollutants at part per billion level (ppb).
Details
- Language :
- English
- ISSN :
- 0003-4592
- Volume :
- 92
- Issue :
- 7-8
- Database :
- MEDLINE
- Journal :
- Annali di chimica
- Publication Type :
- Academic Journal
- Accession number :
- 12185745