Analytical devices based on light-emitting diodes – a review of the state-of-the-art
Keywords: LED, light-emitting diode; IR, infrared; LDR, light-dependant resistor; PMT, photo-multiplier tube; PEDD, paired emitter detector diodes; AU, absorbance unit; ADC, analogue-to-digital convertorLight-emitting diode; Analytical devices; Review; Photodiode;