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为了解黄芪、菊花和薏米硒含量,自药店、中草药交易市场、种植基地采集样品,采用高压密闭消解系统-电感耦合等离子体质谱法(ICP-MS)测定样品中硒含量。结果显示,菊花饮片中硒平均含量最高(1 032.0 ng/g),其次为薏米(17.8 ng/g)、黄芪(12.9 ng/g)。提示不同品种的中草药硒含量差异较大,可能与产地环境、炮制工艺等有关。
In order to understand the content of astragalus, chrysanthemum and barley selenium, samples were collected from pharmacy, Chinese herbal medicine market and planting base. The content of selenium in the samples was determined by inductively coupled plasma mass spectrometry (ICP-MS). The results showed that the average content of selenium in chrysanthemum slices was the highest (1032.0 ng / g), followed by barley (17.8 ng / g) and astragalus (12.9 ng / g). Tip different varieties of Chinese herbal medicine selenium content is quite different, may be related to the origin of the environment, processing technology and so on.