Peppercorns are the dried berries of Piper nigrum.
花椒是胡椒属的干浆果。
Pepper piper nigrum l. , whole or ground. specification. part 2 : white pepper.
整颗粒的和或磨成粉胡椒。规范。第2部分：白胡椒。
Pipeline in Piper nigrum Linn were identified by TLC with clear and reproducible spot, the content of pipeline in extractor was determined by HPLC.
本研究采用薄层色谱法（TLC法）对胡椒提取物中的有效成分胡椒碱进行鉴别分析，结果斑点清晰、重现性较好。
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