Thermospray liquid chromatograph/mass spectrometer interface with direct electrical heating of the capillary

Vestal, Marvin L.; Fergusson, G.J.

doi:10.1021/ac00289a047

Cited by 163 publications

(34 citation statements)

References 7 publications

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“…The thermospray technique employed is based on direct electrical heating of the solution by passing an electrical current through a capillary in which the solution is passing [17,20]. Thus, the current provided to the capillary has a key rule on the solvent temperature, the percent of intra-tube solvent vaporization and the quality of the spray.…”

Section: Nebulizer Outletmentioning

confidence: 99%

A Novel Spray Based Method for the Production of Semiconductor Nanocrystals

Amirav

Lifshitz

2005

MRS Proc.

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We present a novel spray based method for the formation and production of semiconductor nanocrystals that provides an attractive alternative to the commonly used epitaxial and colloidal procedures. According to this spray-based method, mainly thermospray, solutions of semiconductor salts are first sprayed into monodispersed droplets, which subsequently become solid nanoparticles by solvent evaporation. A semiconductor nanoparticle is produced from a single spray droplet upon the full vaporization of the solvent. The average diameter and size distribution of the final nanocrystals are controlled and determined by the solute concentration of the sprayed solution and by the droplet size, hence by the spray production parameters. The spray-produced nanocrystals are collected on any selected solid support. Representative results, shown in this paper, reveal the formation of CdS nanocrystals in the size range of 3 to 6 nanometer and with a size distribution of as low as five percents. A further structural analysis of these nanocrystals showed that they were formed in the zinc blend phase with high degree of crystallinity.

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Section: Nebulizer Outletmentioning

confidence: 99%

A Novel Spray Based Method for the Production of Semiconductor Nanocrystals

Amirav

Lifshitz

2005

MRS Proc.

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“…However, over the last few years commercial interfaces have been developed which have led to a broad applicability of HPLC-MS [147][148][149]. The techniques necessary for the successful introduction of a liquid stream into a mass spectrometer are based on the following principles: electrospray ionization [150], atmospheric pressure chemical ionization [151], thermospray ionization [152], and particle beam ionization [153].…”

Section: Coupling With Mass Spectroscopymentioning

confidence: 99%

Hyphenated Techniques in Liquid Chromatography of Polymers

Pasch

2000

New Developments in Polymer Analytics I

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Complex polymers are distributed in more than one direction of molecular heterogeneity. In addition to the molar mass distribution, they are frequently distributed with respect to chemical composition, functionality, and molecular architecture. For the characterization of the different types of molecular heterogeneity it is necessary to use a wide range of analytical techniques. Preferably, these techniques should be selective towards a specific type of heterogeneity. The combination of two selective analytical techniques is assumed to yield two-dimensional information on the molecular heterogeneity.The present review presents the principle ideas of combining different analytical techniques in two-dimensional analysis schemes. Most promising protocols for hyphenated techniques refer to the combination of two different chromatographic methods and the combination of chromatography and spectroscopy. This review will discuss the basic principles of two-dimensional chromatography and the hyphenation of liquid chromatography with selective detectors.

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“…The thermospray interface, Figure 9.4, is one of the most popular interfaces in use today because it is rugged, fully compatible with the flow rates commonly used with conventional liquid Chromatographie columns (1-2 ml/min) and because interfaces are commercially available for most of the common quadrupole and magnetic sector mass spectrometers [17][18][19]59]. The thermospray interface consists of a probe, source and vacuum system combined in a single unit that can be attached to most mass spectrometers with little further modification.…”

Section: Interfaces For Liquid Chromatography/mass Spectrometrymentioning

confidence: 99%

Hyphenated Methods for Identification After Chromatographic Separation

Poole

1991

Chromatography Today

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Thermospray liquid chromatograph/mass spectrometer interface with direct electrical heating of the capillary

Cited by 163 publications

References 7 publications

A Novel Spray Based Method for the Production of Semiconductor Nanocrystals

A Novel Spray Based Method for the Production of Semiconductor Nanocrystals

Hyphenated Techniques in Liquid Chromatography of Polymers

Hyphenated Methods for Identification After Chromatographic Separation

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