Loong Chuen LEE

Tytuł
CLASSIFICATION AND IDENTIFICATION OF BLACK BALLPOINT PEN INKS BASED ON MULTIVARIATE ANALYSIS AND INFRARED SPECTRA
FEASIBILITY OF HIGH PERFORMANCE THIN LAYER CHROMATOGRAPHY FOR THE FORENSIC ANALYSIS OF RED BALLPOINT PEN INKS
INVESTIGATING WITHIN-GROUP VARIATIONS OF BLACK BALLPOINT PEN INKS BASED ON DATA OBTAINEDBY MICRO-ATTENUATED TOTAL REFLECTANCE / FOURIER TRANSFORM INFRARED SPECTROSCOPY