Methods: Radix Rheum, Leech, Fructus Arctium in Huangzhi Oral Liquids was identified by TLC.(方法：采用薄層色譜法鑒別黃蛭口服液中的大黃、水蛭、牛蒡子。)

The cultivated Rheum required quantity has an increase for the Fe, Mn, Co, and decrease for the Zn, cu, Ni element nutrition with the growth age changes.(隨著生長年齡增加種植大黃對鐵、錳、鈷元素營養(yǎng)需求量有所增加，對鋅、銅、鎳元素營養(yǎng)的需求量略減。)

Using the information of the general survey of Chinese drugs in 1986-1992 as a basis, author reports the growing environments, distributions and reserves of 15 species of Rheum in Qinghai Province.(本文以1986～1992年青海省中藥普查資料為依據(jù)，報道青海省大黃屬15個種的生境、分布及蘊藏量，供開發(fā)利用參考。)

These can help people to recognize the constituents of Polygonum Cuspidatum, Rheum and Semen Cassiae and also apply to science research of the new Antineoplastic Constituents.(本課題不僅豐富了對天然蒽醌中虎杖、大黃、決明子化學成分及其抗癌活性的了解，而且為進一步研究開發(fā)新的抗腫瘤活性物質(zhì)提供了科學依據(jù)。)

Results After the analysis of multiple factors, the dangerous factors were puisne, often rheum, chronic respiratory disease history, bad healthy and so on.(結(jié)果多因素分析顯示，低年齡段、經(jīng)常感冒，有慢性呼吸系統(tǒng)疾病史和個人健康狀況差，是個人好發(fā)急性呼吸道感染的危險因素。)

The rhubarb plant (Rheum palaestinum), however, takes an entirely different approach: its huge leaves funnel water to its single root.(該大黃類植物(Rheumpalaestinum)卻采取了完全不同的另外一種方式：巨大的葉子將水分引導到獨根里面。)

He turned towards me, and looked into my eyes with two filmy orbs that distilled the rheum of intoxication.(他朝我轉(zhuǎn)過身，用兩只因醉酒像要滲出黏液的朦朧的眼睛看著我。)

The differences of 7 kinds of Rheum were compared by HPLC-FPS in this study. The column figures and the retrieval table were drawn.(本實驗采用高效液相色譜——指紋圖譜法分析并比較了7種大黃的化學成分間的差異，繪制了條形圖和檢索表。)

The research aimed to master the distribution characteristics of anthraquinone compounds in the stem of Rheum tanguticum Maxim. et Balf.(目的］為了系統(tǒng)掌握六盤山雞爪大黃莖蒽醌類化合物的分布特征。)

Methods:The extracting conditions and adsorptive characteristics and elutive parameters of the process were studied by taking the extraction efficiency and purified ratio of Rheum as mark.(方法以大黃總蒽醌的提取率及洗脫率為考察指標，考察大黃的提取條件及大孔吸附樹脂富集、純化大黃總蒽醌的吸附性能和洗脫參數(shù)。)