<h1>Uptake</h1>

<p>The relative abundance of this fragment varied between isomers and was much greater within the mass spectrum of mexedrone (70%) in comparison with N-methoxymephedrone (10%). In the mass spectrum of mexedrone, the bottom peak was noticed at m/z 158 and is assumed to have arisen from the loss of methanol from the ion at m/z a hundred ninety to end result within the formation o