In situ NMR parameter monitoring systems and methods for measuring pH and temperature
US10295487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2015 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Apr 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Devices and methods are provided for measuring temperatures and pHs of a sample in situ using NMR spectroscopy, and for sealing one or more ends of a capillary tube after a reference material has been added to the capillary tube, which is used in an in situ NMR temperature measurement device. A method for measuring a pH of a sample in situ using NMR spectroscopy includes providing an in situ NMR pH measurement device. This device includes a sample housing member configured to house a target sample, at least one pH sensor configured to exhibit an NMR spectral change due to a change in pH value of the target sample, and a pH sensor containment member configured to house the at least one pH sensor. The target sample is added to the sample housing member. NMR spectra are obtained to then determine the pH of the target sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.