[shanker]

*delete me*!!!!!!!!!!!!


TO FIND THE RELATIVE MOLECULAR MASS OF A COMPOUND ON A MASS SPECTRUM IS IT THE ONE WITH THE HIGHEST PEAK OR THE ONE FURTHEST TO THE RIGHT??? I HAVE LOOKED ON THE INTERNET BUT NOTHING IS CLEAR....

[shanker]

WHY DOES IT SAY DELETE ME??

[shanker]

TO FIND THE RELATIVE MOLECULAR MASS OF A COMPOUND ON A MASS SPECTRUM IS IT THE ONE WITH THE HIGHEST PEAK OR THE ONE FURTHEST TO THE RIGHT??? I HAVE LOOKED ON THE INTERNET BUT NOTHING IS CLEAR....


HELP I KNOW ITS NOT DIFFICULT BUT I JUST NEED IT VALIDATED BEFORE I CAN DO IT... WONT TAKE LONG TO REPLY

[Ak]

its usually the last peak, but u have to be careful cuz sometimes the last peak will be the one with the isotope (sometimes called m+1 peak.  but anyway the for molecular mass its the M+ peak which is the last one with significant absorbance...usually the m+1 or m+2 peaks have low absorbance

[shanker]

is this the same for compounds ?

[Ak]

yes, like sometimes there will be carbon-13 in an organic molecule instead of carbon-12

[Mitch]

It's the furthest to the right. Run a standard to confrim.

[billnotgatez]

WHY DOES IT SAY DELETE ME??

it is a substitute for using a phrase that the rules suggested you not use

[JGK]

Also there's no need to shout at us

http://www.emailreplies.com/#rules See point 10