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茜素(1,2-二羟基蒽醌)是一种重要的羟基蒽醌类染料,也是常用的化学试剂,在分析化学中用作显色剂、指示剂和螯合剂。国内于1978年完成小试,现已投入批量生产,但尚未见到有关简便而快速测定工业茜素含量方法的报道。 Vasilikiotis和Rai等曾分别用薄层色谱分离分光光度法和薄层色谱光密度法测定了蒽醌及其衍生物的含量,但是他们所用的溶剂系统不适于工业茜素的分离,只适于微量成分的分离。本文用薄层色谱分离分光光度法对茜素的测定条件进行了探讨。提出了苯-四氯化碳-醋酸-丙酮(50:75:0.8:3.8)为展开荆的新体系,工业茜素中的各组分能获得很好的分离。还研究和确定了萃取溶剂、搅拌和离心分离时间及
Alizarin (1,2-dihydroxyanthraquinone), an important hydroxyanthraquinone dye, is also a commonly used chemical reagent used as a chromogen, indicator and chelator in analytical chemistry. China completed a small test in 1978, has now been put into mass production, but has yet to see the simple and rapid method for the determination of industrial alizarin content reported. Vasilikiotis and Rai et al. Have determined the contents of anthraquinone and its derivatives by thin layer chromatography and thin layer chromatography, respectively, but their solvent systems are not suitable for the separation of commercial alizarin and are only suitable for trace The separation of ingredients. In this paper, thin-layer chromatography spectrophotometry for the determination of alizarin conditions were discussed. A new system of benzene - carbon tetrachloride - acetic acid - acetone (50: 75: 0.8: 3.8) was developed. The components of industrial alizarin can be well separated. Extraction solvents were also studied and identified, mixing and centrifugation time and