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。
2
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。
3
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.