We have had a deep study on the theanine in tea, and developed a direct analysis method of theanine with high performance liquid chromatography.

对茶叶中的茶氨酸进行了深入研究，建立了茶氨酸的高效液相色谱直接分析方法。

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A method for the extraction of baicalin from Radix Scutellariae with subcritical water coupled to high performance liquid chromatographic analysis was established.

建立了黄芩药材中黄芩苷的亚临界水提取高效液相色谱测定方法。

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This paper adopts high performance liquid chromatography.

采用高效液相色谱法；

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Skeptical, Mr. Bosland got some seeds and was astonished to find that the peppers he grew averaged more than one million Scovilles, as measured by high performance liquid chromatography.

WSJ: Arms Race to Grow World's Hottest Pepper Goes Nuclear