## 1 Introduction
The suggested material can be produced for microconducting matrices. In addition, it is proposed to combine the method of dehydration of the interface and the method of creating capillary bridges from a liquid film. However, it should be noted that the accuracy and sensitivity of the sensor based on the PANI material depends on the structure of the matrix, as well as on humidity and ambient temperature. The effect of a solvent in the manufacture of gas sensors for the detection of HS is demonstrated in [34]. The authors of the article suggest using dimethyl sulfoxide as a safer option instead of dimethylformamide. At the same time, sensors made with dimethyl sulfoxide may have problems with long-term stability. In general, electrochemical sensors have gained great popularity due to their rather high sensitivity and low cost. However, this type of electrochemical sensor can be affected by other gases, humidity, and temperature. Another popular method that is used to measure emissions into the environment is gas chromatography [35], which implies the application of SO\({}_{2}\) diffusion coefficients,which are determined using Reversed-Flow Inverse Gas Chromatography. This method of setting can be used not only for the mentioned component but also for others, for example to determine nitrous oxide (H\({}_{2}\)S) [36]. On the other hand, in the study in [37] within the framework of gas chromatography, a concept was developed that uses the technology of chemical ionization of a barrier discharge detector. The main disadvantage of the gas chromatography method is the high cost of equipment necessary for conducting research. There are studies suggesting combining the methods of gas chromatography and mass spectrometry in determining the concentration of gases [38]. In [39], the low-pressure gas chromatography (GC) method was proposed in combination with chemical ionization mass spectrometry (CIMS). The mass spectrometry method itself is based on the ionization of sample molecules and the separation of these ions by their masses and charges in an electric or magnetic field [40]. The application of the method of mass spectrometry with chemical ionization in a stream of selected ions (SIFT-MS) was proposed in [41]. The SIFT-MS method is based on the reaction of ions in a special tube filled with an inert gas (helium or nitrogen), and H\({}_{3}\)O\({}^{+}\), NO\({}^{+}\), and O\({}_{2}\)\({}^{+}\) ions are used to reduce the fragmentation of target molecules. The authors noted the influence of the tube temperature on the data results. In total, it should also be noted that the application of the mass spectrometry method requires complex and expensive equipment. On the other hand, another type of optical measurement also became very common [42]. For example, a remote method was developed that uses UV in the study [43] and cameras that track the intensity of UV radiation absorption by SO\({}_{2}\) gas in ship exhausts. The results of the experiment showed an accuracy level of 95.918%. Another study [44] suggests a NO\({}_{2}\) detection sensor that uses the technology of functionalization of submicron gallium nitride wire with titanium dioxide nanoclusters to improve the properties of the wire by applying titanium dioxide nanoclusters to it. However, this sensor shows the best results only at a temperature of 20\({}^{\circ}\)C. In comparison, infrared devices for monitoring nitrous oxide (N\({}_{2}\)O) concentration was developed in [45]. The principle is based on the use of infrared spectroscopy with hollow waveguides (iHWG) and the preliminary concentration of samples. However, spectral interference from CO\({}_{2}\) may be a limitation of the method's application. The study in [46] suggests a sensor for detecting NO\({}_{2}\). The device consists of a pyroelectric detector with a carbon black layer, an MEMC emitter of infrared radiation, and an optical camera. Much attention in the research is paid to signal filtering and error compensation algorithms. In addition, the Bera-Lambert equation was used as part of the calibration.