TLC analysis of Knautia arvensis demonstrated phenolcarboxylic acids and flavonoids. Spectrophotometric studies were run to assess the quantitative composition of phenolic compounds expressed as chlorogenic acid (from 1.05% to 2.08%), and it was proposed that this substance can be used for standardization of samples of Knautia arvensis herb. HPLC-UV identified the presence of o-coumaric, gallic, neochlorogenic, chlorogenic, caffeic, isoferulic, and rosmarinic acids, as well as hyperoside and kaempferol. Chlorogenic acid was present in the greatest quantity (0.29 – 0.60%). GLC-MS showed that hexane extracts contained 92 substances, including a-linoleic acid, ethyl esters of palmitic, palmitoleic, 13-methyltetradecanoic, and phenylacetic acids, phytol, diethylacetal isovaleraldehyde, hexahydrofarnesyl acetone, diethoxyethane, 14-methyl-8-hexadecenal, succinic acid diethyl ester, dihydrocitronellol, phenylacetaldehyde, and others.

中文翻译：

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Field Scabious (Knautia arvensis L.) 的组成

Knautia arvensis 的 TLC 分析表明酚羧酸和类黄酮。进行分光光度法研究以评估以绿原酸表示的酚类化合物的定量组成（从 1.05% 到 2.08%），并建议该物质可用于对 Knautia arvensis 药草样品进行标准化。HPLC-UV 鉴定了邻香豆酸、没食子酸、新绿原酸、绿原酸、咖啡酸、异阿魏酸和迷迭香酸以及金丝桃苷和山奈酚的存在。绿原酸含量最高 (0.29 – 0.60%)。GLC-MS显示己烷提取物含有92种物质，包括α-亚油酸、棕榈酸乙酯、棕榈油酸乙酯、13-甲基十四烷酸和苯乙酸、植醇、异戊醛二乙缩醛、六氢法呢基丙酮、二乙氧基乙烷、14-甲基-8-十六烯醛、