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In addition, a pre-column derivatization HPLC method was applied to the determination of Astragaloside Ⅳ; the flavonoids was determined by full-range HPLC scanning; a colorimetric method was developed for the determination of flavonoids and saponins. Hierarchical cluster analysis was performed on three constituents of different Radix Astragali species, and its result was compared with those of traditional phytoecological identification and the pharmacological quality assessment.

本研究以比色法测定了黄芪中总皂苷的含量，以柱前衍生化高效液相色谱法测定了黄芪中黄芪甲苷的含量；以比色法测定了黄芪中总黄酮成分的含量，以反相高效液相色谱法测定了黄芪中毛蕊异黄酮和毛蕊异黄酮苷的含量；以黄芪中的黄芪甲苷、毛蕊异黄酮和毛蕊异黄酮苷为主要特征对不同品种的黄芪进行了系统聚类分析，并将聚类结果与传统生药学鉴定和药理质量评价结果进行了比较。

In this thesis, the chemical constituents from the seeds of Pinus koraiensis and the stems of pinus massoniana were investigated.

为了进一步研究松科植物的化学成分，本论文对红松松子及马尾松枝条的化学成分进行了系统的植物化学分析。

ObjectiveTo study common chemical constituents of Bryopsis plumose and its nutrition evaluation.

目的分析羽藻的基本化学组成并对其进行营养学评价。

Solid-phase extraction is an effective tool for the preconcentration of trace elements and their separation from various sample constituents.

固相萃取是微量元素预浓缩以及从复杂组成样品中将其分离出来的有效工具。

This paper reviews the chemical constituents and pharmacological activities of Primulaceae plants in order to provide reference for the future research and development.

本文对报春花科植物的化学成分及药理活性作一综述，以期为今后进一步研究和开发提供参考。

The chemical constituents from Primulaceae plants are mainly flavonoids, terpenoids, sterols, organic acids, quinines, etc. These plants have effects of lowering serum uric acid level in mice, promoting bile secretion in rats, reducing bile pigment stones formation rate, immune regulation and so on.

报春花科植物中主要化学成分有黄酮类、萜类、甾醇类、有机酸类、醌类等；药理活性主要有降低小鼠的血清尿酸水平，促进大鼠胆汁分泌，减少胆色素结石的成石率，免疫调节功能等。

AIM: To study the active chemical constituents of Pteris multifida against growth of rat prostatic epithelial cells.

目的： 研究凤尾草抑制前列腺上皮细胞增生的活性化学成分。

Upon initial signal assignment, about 20 chemical constituents in tea were identified, including amino acids, theanine, catechins (EGC, EC, EGCG, ECG and unknown catechins), sucrose, unknown sugars, fatty acids, caffeine, quinic acid and so on. The NMR data were then analyzed by the principal component analysis technique.

检测出约20种物质，包括多种氨基酸、茶氨酸、多种儿茶素表没食子儿茶素(EGC、表儿茶素、表没食子儿茶素没食子酸酯、表儿茶素没食子酸酯和一些未知的儿茶素、蔗糖、未知糖类、脂肪酸、咖啡因等。

Objective: To deal with the correlation between phylogeny, chemical constituents and pharmaceutical aspects of Ranunculaceae, namely a pharmaphylogenic study of this taxon.

中文摘要：目的：探索毛茛科的植物亲缘关系、化学成分与疗效间存在的联系性，即毛茛科药用亲缘学的研究。

Aim To study chemical constituents of the aerial parts of Rhamnus crenatus sieb.

目的 研究黄药的化学成分。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。