Hydrogen sulfide (H2S) is a silent threat that is responsible for many incidents of toxic exposure, but the indispensable role of H2S has also been recognized in cellular signaling and protection and in regulating numerous biological functions. Hence, the stability and the accuracy of gas detection devices are crucial in the multidisciplinary domains for fundamental or applied research. However, sensitive and fast H2S detection remains challenging, especially in the few parts per million (ppm) concentration range or lower.
Click here for original story, Development of ultrasensitive photoacoustic hydrogen sulfide sensor with fast response
Source: Phys.org