Thermally stimulated luminescence of urine salts

We investigated thermally stimulated luminescence (TSL) of urine salts in the normal state and with oxalate, urate, and phosphate salts. We found that the presence of pathological salts leads to a decrease of TSL intensity and to the appearance of additional TLS bands with maxima at 118 and 205 K in addition to the characteristic bands at 173 and 260 K. The TLS bands are related to the urine components. The TSL intensities of urine salts of different chemical composition are compared. The thermal activation energy of the strongest TSL bands is determined. __________ Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 4, pp. 548–551, July–August, 2007.