Fig. 11: Mass spectrum of ink ingot.
From: Exploration of stationery items unearthed from the Tomb of Murong Zhi of Tuyuhun in the Tang Dynasty
A Mass spectrum of Toluene at 5.22 min, B Mass spectrum of Benzofuro[3.2-d]pyrimidin-4(3H)-one at 19.637 min, C Mass spectrum of Phenanthrene at 5.22 min, D Mass spectrum of Fluoranthene at 5.22 min.
