TY - JOUR

T1 - A Simple Contactless High-Frequency Electromagnetic Sensor: Proof of Concept

AU - Юськина, Екатерина Андреевна

AU - Макаров, Никодим Александрович

AU - Хайдукова, Мария Михайловна

AU - Филатенкова, Т.А.

AU - Шамова, Ольга Валерьевна

AU - Семенов, Валентин Георгиевич

AU - Панчук, Виталий Владимирович

AU - Кирсанов, Дмитрий Олегович

PY - 2022/9/6

Y1 - 2022/9/6

N2 - We report on the development of a very simple and inexpensive sensor device based on an inductance coil connected to a high-frequency electric field generator. The working principle of this sensor is as follows: liquid sample in a plastic tube is placed inside the inductance coil as its core and this core changes the properties of high-frequency electric current passing through the coil; these changes depend on sample conductivity, dielectric constant, magnetic properties, and capacitance. The electric signal registered after the coil represents a kind of a spectrum that can be effectively treated with chemometric tools. Our studies have shown that such a sensor can be used to distinguish between substances with different physical and chemical properties; different concentrations of ions in aqueous solutions with a linear response in a broad concentration range from 10-3 M to 10-1 M; can quantify the fat content in milk and cream samples with about 2% accuracy; and can distinguish between bacterial cultures and cell line cultures. The measurements are very fast and contactless, and the results show good promise for developing a number of applications of this sensor system.

AB - We report on the development of a very simple and inexpensive sensor device based on an inductance coil connected to a high-frequency electric field generator. The working principle of this sensor is as follows: liquid sample in a plastic tube is placed inside the inductance coil as its core and this core changes the properties of high-frequency electric current passing through the coil; these changes depend on sample conductivity, dielectric constant, magnetic properties, and capacitance. The electric signal registered after the coil represents a kind of a spectrum that can be effectively treated with chemometric tools. Our studies have shown that such a sensor can be used to distinguish between substances with different physical and chemical properties; different concentrations of ions in aqueous solutions with a linear response in a broad concentration range from 10-3 M to 10-1 M; can quantify the fat content in milk and cream samples with about 2% accuracy; and can distinguish between bacterial cultures and cell line cultures. The measurements are very fast and contactless, and the results show good promise for developing a number of applications of this sensor system.

UR - https://www.mendeley.com/catalogue/77984b2d-b3f8-3201-97ce-1caf9518a0b3/

UR - http://www.scopus.com/inward/record.url?scp=85137216995&partnerID=8YFLogxK

U2 - 10.1021/acs.analchem.2c02067

DO - 10.1021/acs.analchem.2c02067

M3 - Article

VL - 94

SP - 11978

EP - 11982

JO - Industrial And Engineering Chemistry Analytical Edition

JF - Industrial And Engineering Chemistry Analytical Edition

SN - 0003-2700

IS - 35

ER -