Scientists had to wait until the development of a technique called gas chromatography/mass spectrometry to identify traces of methoxypyrazines.
科学家们只得一直等到叫做气相色谱或是质谱的技术的出现，才得以识别出痕量的甲氧基吡嗪。
The development in the field of separating proteins using ion exchange chromatography was reviewed with 100 examples.
综述了离子交换色谱在蛋白质分离方面的新进展。参考文献100余篇。
This paper reviewed the mechanism of purification by polyamide chromatography and the development of applying in flavonoids of plants and tea polyphenols of tea and anthraquinone and noble metal.
综述了聚酰胺的层析分离作用机理，以及在黄酮类物质、多酚、以及贵金属分离提取中的应用现状。
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