Micromachined thin film solid state electrochemical CO2, NO2 and SO2 gas sensors

Fluorescent Chemosensor for Quantitation of Multiple Atmospheric Gases

“…The measurement of quantum intensity is limited by the sensitivity of the spectrofluorimeter and that depends upon the intensity of the excitation source. Crank et al [11] estimated that concentrations as low as 10 −12 mol.dm −3 can be detected by excitation spectroscopy compared with a minimum concentration of 10 −8 mol.dm −3 by absorption spectroscopy [28]. Excitation spectroscopy is also used to determine the quantum efficiency of energy transfer between donor and acceptor molecules.…”

“…Electrochemical (EC) and Infrared spectroscopy (IR) methods have been the common choices for the sensing gases [9][10][11][12]. EC sensors are power-hungry and commonly work at high temperatures (300-800°C).…”

An all-solid-state potentiometric SO2 gas sensor with solid reference electrode

“…Reliable and reproducible results were achieved. Recently a thin film SO2 sensor has been developed by using a mixed sulphate of Na2SO 4 + BaSO 4 + Ag2SO 4 film as the electrolyte with metal Ag as the reference [7]. Both electrodes of the sensor were exposed to the same atmosphere during operation.…”

Computational investigation of the dissociative adsorption of dichloroacetylene (C2Cl2) on N functionalized carbon and carbon germanium (CGe) nanocone sheets in the gas phase and dimethyl sulfoxide

“…4,5 Studies on male rats and rabbits have shown that inhalation of C 2 Cl 2 can cause tubular necrosis, focal necrosis, and other nephrotoxic effects. 6,7 Additionally, the rabbits that were given C 2 Cl 2 experienced hepatotoxic and neuropath logical effects. Inhalation of C 2 Cl 2 also causes benign tumors of the livers and kidneys of rats.…”