| Main Title |
Gradient Liquid Chromatography/Mass Spectrometry Using Microbore Columns and a Moving Belt Interface. |
| Author |
Hayes, M. J. ;
Schwartz, H. E. ;
Vouros, P. ;
Karger, B. L. ;
|
| CORP Author |
Environmental Research Lab., Athens, GA. Office of Research and Development. ;Northeastern Univ., Boston, MA. Barnett Inst. of Chemical Analysis and Materials Science. |
| Publisher |
c1984 |
| Year Published |
1984 |
| Report Number |
EPA/600/J-84/419; |
| Stock Number |
PB89-208896 |
| Additional Subjects |
Mass spectroscopy ;
Phenols ;
Column packings ;
Boring ;
Interfaces ;
Motion ;
Qualitative analysis ;
Belt conveyors ;
Graphs(Charts) ;
Reprints ;
Liquid chromatography
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB89-208896 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
10p |
| Abstract |
High-performance gradient microbore LC/MS is demonstrated by use of spray deposition onto a moving belt surface. A simplified nebulizer design is shown to provide convenient operation and high transfer efficiency over a wide range of flow and solvent conditions. It is shown further that the extracolumn variance of the LC/MS system is sufficiently small to allow the use of relatively short 5 micrometers and 7.5 micrometers reversed-phase microbore columns without significant loss in resolution. Relatively high microbore flow rates (about 100 microL/min) are possible for fast analysis and sensitivity. The LC/MS technique is applied to the analysis of phenols in a aqueous coal gasification sample. Detection limits for full scan LC/EI-MS are found to be about 6 ng for some representative phenols. (Copyright (c) 1984 American Chemical Society.) |
