Four papers : end point detection and evaluation of ionization constants of inorganic acid by potentiometry; the use of ultraviolet spectroscopy in the determination of pKa of methyl orange and simultaneous analysis; molecular structure--infrared spectra correlation of selected organic compounds; quantitative determination of calcium and magnesium in anti-acid formulation by atomic absorption spectroscopy [microform]. - Fajardo, Maria Teresa M. (Photoduplication Service, University of the Philippines Library, 1974)