TY - JOUR A2 - 涅斯捷连科，帕维尔AU - Abdulwahed，马兹哈尔AU - Mamoly，拉米亚AU - Bosnali，瓦埃勒PY - 2020 DA - 2020年3月23日TI - 在它的合成混合物SP对乙醛酸的测定一个简单的分光光度法 -5417549 VL - 2020 AB - 一种新的简单和可靠的分光光度测定方法被描述为确定乙醛酸在其合成反应混合物由乙醛酸之间的改性霍普金斯 - 科尔反应的方式含草酸，乙醇酸，乙酸，乙二醛，和乙二醇酸和在氯化铁存在的色氨酸和浓硫酸。The linear range of glyoxylic acid concentration is 0–0.028 M. The limits of detection (LOD) and quantitation (LOQ) are 0.0019 M and 0.00577 M, respectively. The LOD, LOQ, standard deviation, relative standard deviation, and recovery ratio of the proposed method are comparable with a selected HPLC reference method. Both methods displayed same precision and credibility. Reaction stoichiometry between tryptophan and glyoxylic acid is assumed to be 2 : 3. Reaction mechanism has been postulated based on identified molar ratios of reactants. Glyoxal gave a negative test with tryptophan although it is a dialdehyde. SN - 1687-8760 UR - https://doi.org/10.1155/2020/5417549 DO - 10.1155/2020/5417549 JF - International Journal of Analytical Chemistry PB - Hindawi KW - ER -