Figure 1From: Laser-induced thermal lens spectrometry after cloud point extraction for trace analysis of mercury in water and drug samplesSchematic diagram of single-laser thermal lens spectrometer. PS, power supply; Ch, chopper; L, lens; MC, microcell; M1,M2,M3, mirror; Co, controller; Po, polarizer; P, pinhole; D, detector; Op-Amp, operational amplifier; ADC, analog digital converter; PC, personal computer.Back to article page