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离子的质量( 以相对原子量单位计) 与它所带电荷(以电子电量为单位计以电子电量为单位计) 的比值, 叫作质荷比，简写为m/z。 质荷比是质谱图的横坐标。

2023年12月13日 · 总离子色谱图（TIC） 英文全称为：Total Ion Chromatogram。简单来说就是，把所有化合物的强度进行累加。 例如当 RT = 5 分钟时， m/z1 的强度为 1000，m/z2 的强 …

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2021年5月29日 · 本文介绍了在Matlab中计算程序运行时间的三种方法：tic/toc组合、etime与cputime。 tic/toc是官方推荐的计时方式，它记录tic和toc之间代码的运行时间；etime利用系统 …

An m,n,k-game is an abstract board game in which two players take turns in placing a stone of their color on an m-by-n board, the winner being the player who first gets k stones of their own …