Determination of Ascorbic Acid (Vitamin C) by Direct Injection Enthalpimetry (DIE) Technique The ascorbic acid content of juices of some fruits and pharmaceutical tablets of Vitamin C was determined by a homemade apparatus of DIE technique using a thermoc. Ibn AL-Haitham Journal For Pure and Applied Sciences, [S. l.], v. 25, n. 1, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/681.. Acesso em: 4 may. 2024.