Thiourea dioxide as a unique eco-friendly coreactant for luminol chemiluminescence in the sensitive detection of luminol, thiourea dioxide and cobalt ions.

Thiourea dioxide, a green industrial reductant, has been explored as an efficient chemiluminescence coreactant for the first time. Luminol-thiourea dioxide chemiluminescence can be significantly enhanced by Co(2+). This system enables the sensitive detection of thiourea dioxide, luminol and Co(2+), being particularly selective for Co(2+) detection.