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. IHJPAS [Internet]. 2017 May 11 [cited 2024 May 4];25(1). Available from: https://jih.uobaghdad.edu.iq/index.php/j/article/view/681