"Pulsar" Photon Counter In Electrogenerated Chemiluminescent Measurements

The work is devoted to the development of the apparatus "Pulsar" that is a high-speed pulse counter with a dual interface. It is based on the modern ARM processor STM32F407. High peripheral modules integrations in the selected microcontroller and its productivity were used as a base to PMT integration in electrogenerated chemiluminescent (ECL) analytical systems. Apparatus testing with real ECL compositions showed its capability. ECL pulse response up to 84 MHz or 6 ns pulse duration is transformed to output counting data in two forms for digital and analog interfaces. High temporal resolution up to 10 Ns supports measurement techniques based on fast electrode polarization. The built-in double interface simplifies system integration that well demonstrated, as an example, a combination of PMT module H 10682-210 (Hamamatsu Photonics, Japan) with potentiostat Methrohm Autolab 128N.