Electrospray current measurement in the nanospray and microspray regime
US11892433B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2021 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Jan 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/0061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrospray ionization system used in mass spectrometry provides for improved current measurement. The system includes a fluid union, a fluid column coupled with a first port of the fluid union, a power source coupled with the fluid union and configured to apply a voltage potential to the fluid union, and an electrospray emitter coupled with a second port of the fluid union. The power source is coupled with the first port and configured to apply the voltage potential to the first port to restrict current leakage from the fluid union. The current sensing circuit is configured to determine an electrical current flow between the power source and the at least one of the fluid union and the first port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.