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Electrospray ion source for spectrometry using inductively heated gas

An electrospray ion source, electrospray technology, applied in the direction of ion source/gun, circuit, discharge tube, etc.

Pending Publication Date: 2021-12-03
BRUKER SCI LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the induction heating of the capillary is independent of the function of the ion source

Method used

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  • Electrospray ion source for spectrometry using inductively heated gas
  • Electrospray ion source for spectrometry using inductively heated gas
  • Electrospray ion source for spectrometry using inductively heated gas

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Embodiment Construction

[0033] While the invention has been shown and described with reference to a number of different embodiments thereof, those skilled in the art will recognize that changes may be made therein without departing from the scope of the invention as defined in the appended claims. and various changes in details.

[0034] As briefly described above, the present invention provides a method of heating a gas that facilitates the generation of desolvated ions as part of an electrospray process, between a heating power source and a heater (also referred to herein as a "heating device") itself There is no mechanical or electrical contact between them, instead electromagnetic induction is used. Small conductive elements with multiple windings, such as short coils or flat spirals with only a few windings, are supplied with low voltage high current AC in the frequency range from about 1 kHz to 1 gigahertz, Metal or other conductive heating means are thereby heated within the helically wound c...

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Abstract

The invention relates to the generation of desolvated ions by electrospraying to be investigated analytically, e.g. according to the charge-related mass m / z and / or ion mobility. The cloud of highly charged droplets drawn from the spray capillary by a high voltage is usually focused and stabilized by a beam of nebulizing gas surrounding the cloud of tiny droplets. For a fast drying of the droplets, an additional desolvation gas is usually heated to a temperature of up to several hundred degrees centigrade and blown into the cloud of droplets. The invention particularly relates to the heating of the gas which is instrumental in the generation of desolvated ions as part of the electrospraying process without any mechanical or electrical contact between the heating power supply and the heater itself, but rather by heating the heater for the gas using electromagnetic induction.

Description

technical field [0001] The present invention relates to the generation of desolvated ions by electrospray in mass spectrometry and / or ion mobility spectrometry ion sources. A cloud of highly charged droplets drawn from a spray capillary by a high voltage is usually focused and stabilized by a beam of inert atomizing gas surrounding the cloud of tiny droplets. In order to dry the droplets quickly, a second gas stream, called desolvation gas, is blown into the spray cloud, usually heated to temperatures up to several hundred degrees Celsius, such as between 300°C and 500°C. In particular, the invention relates to a method of heating a gas that facilitates the generation of desolvated ions. Background technique [0002] In an electrospray ion source, a solution of an analyte is sprayed by applying a high voltage on the order of four thousand volts to the spray capillary, forming a high electric attraction field for the liquid at the end of the capillary, thereby generating ion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/16H01J49/04
CPCH01J49/165H01J49/167H01J49/0468H01J49/0422G01N27/623
Inventor 费利奇安·蒙泰安阿尼尔·马瓦努尔
Owner BRUKER SCI LLC
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