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东莨菪硷具有抗乙酰胆硷、止吐和镇痛等作用,是一种具有重要医疗作用的药物。目前工厂中以曼陀罗属(Datura)和Drboisia属的一些种的植物为原料进行提取。近来已有许多方法测定东莨菪硷的含量,如用比色法测定经纯化的提取液,或用TLC法将提取液分离再测定,以及最近用GLC法来测定。然而这些方法的灵敏度均在较低的微克(μg)范围,且每天仅能分离和测定少数样品。现已证明,放射免疫分析(简称RIA)对测定各种不同化学结构的植物成分极为有用。其优点为:
Dongqi has anti-acetylcholine, antiemetic and analgesic effects and is a drug with important medical effects. At present, plants are extracted from plants of some species of the genus Datura and Drboisia. Many methods have recently been used to determine the content of scopolamine, such as colorimetric determination of purified extracts, or separation and re-assay of extracts by TLC, and more recently by GLC. However, the sensitivity of these methods is in the range of low micrograms (μg), and only a few samples can be separated and measured every day. It has been demonstrated that radioimmunoassay (RIA) is extremely useful for the determination of plant components of various chemical structures. Its advantages are: