A phosphine analyzer  the concentration of PH3 gas in air. These devices use an electronic sensor to detect PH3 levels and convert this data to a digital signal. The signal is read by a microprocessor and if it is above a pre-set threshold, LED and buzzer alarms are activated to warn users of a potential danger. These devices are often used in commercial and industrial applications as they can also detect other gases such as carbon monoxide, acetone, methane, hydrogen sulphide, ammonia and chlorine. They are portable and easy to use and feature long battery life, large screen displays, and belt clips for easy attachment. They can also be wall-mounted for continuous protection and warning of phosphine gas leaks, especially in indoor environments.

Detecting Combustibles: Exploring the Function of Combustibles Detectors

Phosphine is a toxic and flammable gas that is released when aluminium or zinc phosphide comes in contact with acid. It is rapidly absorbed into blood and distributed throughout the body. Presumptive spot testing using silver nitrate strips is commonly carried out in poisoning cases but is not suitable for confirmation or quantification of phosphine. Biological samples such as stomach contents, blood and liver can be tested for phosphine by headspace gas chromatography with nitrogen phosphorous detector (HS-GC/NPD).

Phosphine is used in fumigation to control pests in warehoused commodities such as grains, tobacco and stored vegetables. It is also used in the production of synthetic fuels and clandestine methamphetamine synthesis. Due to its high toxicity, PH3 can be dangerous for workers and consumers alike. Therefore, it is vital that workplaces and consumers have a reliable and accurate means of measuring the concentration of this deadly gas.

…