Y. Georgiadou et al., A NOVEL STEADY-STATE DETECTION EQUIPMENT FOR WEAK SIGNALS IN THE NEAR-INFRARED - SINGLET OXYGEN (O-2((1)DELTA(G))) LUMINESCENCE IN WATER, Journal of information recording, 23(1-2), 1996, pp. 201-202
The aim of this work was the development of the direct quantitative an
alysis of singlet molecular oxygen ((1) Delta(g)) in water (H2O) throu
gh its near-infrared emission at 1270 nm. For this purpose a detection
system consisting of an InGaAs diode and appropriate pre-amplificatio
n based on the phase-sensitive detection (PSD) technique has been buil
t. Preliminary results are presented.