Infrastructure: physical space of 40 m², with the following equipment: Agilent NIR Cary 7000 UV-Vis spectrophotometer, Agilent Cary 500 UV-Vis spectrophotometer, Agilent Cary 630 Fourier Transform infrared spectrophotometer, Perkin-Elmer Eclipse UV-Vis spectrofluorometer, Gradient System high performance liquid chromatograph, Agilent FAAS flame atomic absorption spectrophotometer + accessories, ContrAA 300BU atomic absorption spectrophotometer + accessories. Miscellaneous: pH meter, ultrasonic bath, heating magnetic stirrer, thermostatic bath.