Determination of formaldehyde using a novel Pt-doped nano-sized sensitive material: Operating conditions optimization by response surface method

An electrochemiluminescence resonance energy transfer biosensor for the detection of circulating tumor DNA from blood plasma

“…The limit of detection of the ECL-RET biosensor was measured with the commonly-used 3σ method ( Yang et al., 2020 ; Fan et al., 2020 ; Liang et al., 2016 ; Cai et al., 2021 ). Briefly, for each condition, the standard deviation of samples with the lowest concentration is calculated and multiply by three to obtain the 3σ limit of detection.…”

Novel Diethyl Ether Gas Sensor Based on Cataluminescence on Nano-Pd/ZnNi3Al2O7

“…For the loading of nano-Pd/ZnNi 3 Al 2 O 7 , the adjustment of working temperature, the introduction of the measured gas sample, and the recording of CTL signals, one can refer to our previous work. − …”

“…CTL, a kind of chemiluminescence (CL) emitted from heterogeneous catalytic oxidation reactions on the gas–solid interface, has been considered as a promising energy transduction mechanism for fabricating gas sensors . In recent years, a series of CTL sensing applications have been attempted to develop for diethyl ether − and many other molecules − at different laboratories. However, a higher working temperature above 200 °C is not conducive to the stability of the sensor signal …”

“…The main working conditions for the determination of diethyl ether by the CTL method, such as analytical wavelength, working temperature, and carrier gas flow rate, are not isolated but interact with each other. The response surface method (RSM) is a statistical comprehensive test technique. − ,− It takes the response of the system as a function of many factors and displays the functional relationship by the graphic technology. In this way, we can choose the optimal conditions in the experimental design by intuitive observation.…”

Effect of tunable composition-shape of bio-inspired Pt NPs electrocatalyst in direct methanol fuel cell: Process optimization and kinetic studies

“…Statistically, of the three selected parameters, the bio-Pt NPs concentration (X1) term is the most crucial parameter to the methanol oxidation current density response because it shows the highest F-value (141.35) and low p-value (<0.0001). This phenomenon can be attributed to the difference in the number of reactant particles between the solid (electrocatalyst) and liquid (methanol) phases (Yang et al, 2020). The higher the concentration of bio-Pt NPs in the methanol solution, the higher the chance of the collision frequency between the reactant particles occurring, and the reaction rate also increases.…”