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Piper betle Linn. is a traditional plant associated with the Asian and southeast Asian cultures. Its use is also recorded in folk medicines in these regions. Several of its medicinal properties have recently been proven. Phytochemical analysis showed the presence ofmainly terpenes and phenols in betel leaves. These constituents vary in the different cultivars of Piper betle. In this paper we have attempted to profile eight locally available betel cultivars using the recently developed mass spectral ionization technique of direct analysis in real time (DART). Principal component analysis has also been employed to analyze the DART MS data of these betel cultivars. The results show that the cultivars of Piper betle could be differentiated using DART MS data.
用实时直接分析质谱技术分析打印和手写纸张
用实时飞行时间质谱直接分析清醒状态果蝇的表皮烃类化合物
实时飞行时间质谱直接分析快速测定血清代谢组指纹图谱的方法优化
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