Title

Solid-phase extraction nuclear magnetic resonance (SPE-NMR): Prototype design, development, and automation

Document Type

Journal Article

Publication Title

Industrial and Engineering Chemistry Research

Volume

59

Issue

47

First Page

20836

Last Page

20844

Publisher

American Chemical Society

School

School of Engineering

RAS ID

32766

Comments

Wagner, L., Zargar, M., Kalli, C., Fridjonsson, E. O., Ling, N. N. A., May, E. F., ... Johns, M. L. (2020). Solid-phase extraction nuclear magnetic resonance (SPE-NMR): Prototype design, development, and automation. Industrial & Engineering Chemistry Research, 59(47), 20836-20844. https://doi.org/10.1021/acs.iecr.0c04827

Abstract

© 2020 American Chemical Society. All rights reserved. Reliable measurements of oil-in-water (OiW) content is essential in the oil and gas industry. The current OiW analysis techniques deployed in the industry need frequent calibration and mostly depend on optical access to the sample. They are also limited in providing a thorough compositional examination of the oil content. Nuclear magnetic resonance (NMR) is a well-established analytical tool across a wide range of different fields. For the OiW analysis, NMR can provide a self-calibrated measurement, does not require optical access, and allows for quantitative analysis of aromatic and aliphatic hydrocarbon content at the ppm level. Here, a fully automated prototype combining a custom-built solid-phase extraction (SPE) platform for sample pre-concentration and a benchtop NMR spectrometer for quantitative OiW measurements is designed, built, and demonstrated. The novel automated apparatus has significant potential for field deployment and provides a reliable and reproducible analysis of OiW content consistent with common reference methods.

DOI

10.1021/acs.iecr.0c04827

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