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Chemistry Forums for Students => Organic Chemistry Forum => Organic Spectroscopy => Topic started by: czernobill on February 15, 2017, 05:18:31 AM

Title: Basic question on mass spectra
Post by: czernobill on February 15, 2017, 05:18:31 AM

Dear all,
what does the arrow and the "3x" mean in this figure?

Thanks a lot(https://img2.brain4.photobox.com/19649238b38674b421b0bc3968247aa42c044ec80c66715056f4891ded28846eb503211d.jpg)

Title: Re: Basic question on mass spectra
Post by: mjc123 on February 15, 2017, 07:57:05 AM

It looks as if it means that the intensity of all the peaks to the right (that is, m/z above about 160) is multiplied by 3 for the sake of clarity. So e.g. the 211 peak really has a height of 17 rather than 51, relative to 127 = 100.