反应时间对液相色谱检测皮革中甲醛含量结果的影响探讨

摘要

Formaldehyde content in leather was detected quantitatively through a reverse chromatography separation after 2, 4 - dinitrobenzene hydrazone was obtained via quantitative reaction of formaldehyde and 2, 4-DNPH. Depending on the experimental results, the reaction time was established. Therefore, it is proposed that the test is performed after 180 min reactions, and the stability detection value will be achieved.%甲醛与2,4-二硝基苯肼，定量反应转化成为2,4-二硝基苯腙，通过反向色谱法分离，并对皮革中的甲醛进行定量测定。根据实验结果，明确反应时间。建议在反应180 min时进行检测，能够得到较为稳定的检测结果。