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DOI: 10.3791/50733-v
Please note that some of the translations on this page are AI generated. Click here for the English version.
蒽三酚(DT; 1,8 - 二羟基-9,10 - 二氢蒽-9 - 酮)先前已被报道作为MALDI基质为小分子的组织成像;对于使用DT的内源性脂质的对的MALDI成像协议这里所提供的组织切片由正离子的MALDI-MS在一个超高分辨率四极-FTICR仪器表面。
该程序在空间上定位牛晶状体内的多个内源性脂质。采用基质辅助激光解吸电离技术,质谱成像。首先,准备一个薄的牛晶状体组织切片并应用多矩阵,然后获取 maldi 质谱数据集。
将数据集处理成晶状体组织切片上检测到的脂质的可视化表示。这些结果可以共同确定脂类在牛晶状体内的位置和相对丰度,并产生这种分布的可视化表示。与其他方法(如脂质提取后进行 LCMS 分析)相比,maldi 质谱成像可以同时可视化多种脂质,而不会丢失其空间定位。从零下 80 摄氏度的储存中取出速冻组织标本。
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