研究了中性抗坏血酸注射液在无氧条件下的降解产物和降解反应。检测出的降解产物有;2-酮-L-古洛糖酸、二氧化碳和木糖,分离、鉴定了新的降解产物——丙酮醛,并研究了抗坏血酸的水解与2-酮-L-古洛糖酸脱羧的反应动力学,提出了中性抗坏血酸注射液在无氧条件下可能的降解途径。 Degradation products and degradation reactions of neutral ascorbate injection under anaerobic conditions were studied. The degradation products detected were 2-keto-L-gulonic acid, carbon dioxide and xylose, and the new degradation product, pyruvic aldehyde, was isolated and identified. The hydrolysis of ascorbic acid and 2-keto-L- The reaction kinetics of decarboxylation of lornic acid was proposed and the possible degradation pathway of neutral ascorbate injection under anaerobic conditions was proposed.