An improved eluent-jet interface was used to combine flow-injection analysis (FIA) and micro-column liquid chromatography (LC) on-line with mass spectrometry (MS) in the electron ionization (EI) and solvent-independent chemical ionization (CI) modes. Good results were obtained for a series of pestic
Liquid chromatography-mass spectrometry interface–I: The direct introduction of liquid solutions into a chemical ionization mass spectrometer
✍ Scribed by M. A. Baldwin; F. W. McLafferty
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 146 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1076-5174
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✦ Synopsis
Abstract
Mass spectra of solutes can be obtained by direct introduction of the solution into a chemical ionization source. This should facilitate direct monitoring of the effluent from liquid chromatography columns with nanogram sensitivity.
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## Abstract | I. | Introduction | 88 | | II. | Cap‐EI Interface | 90 | | | A. Interface Performance | 92 | | III. | Direct‐EI Interface | 93 | | | A. Interface Performance | 97 | | IV. | Conclusions | 103 | | Acknowledgments | 103 | | References | 103 | Two recent approaches for coupling cap
## Abstract A comprehensive evaluation and a thorough discussion of the fields of possible applications of the Direct‐EI interface are described in this review. Direct‐EI allows the direct introduction of the effluent from a capillary HPLC column into the electron ionization (EI) ion source of a ma
The performance of electrospray ionization and atmospheric pressure chemical ionisation (APCI) for the analysis of carotenoids was investigated. On our instrument, APCI produced spectra which were readily interpreted, and the positive-ion mode proved applicable to all of the compounds. The separatio