ASMS members have access to the International Journal of Mass Spectrometry via Elsevier's ScienceDirect portal. Members do need to set-up a ScienceDirect user profile. See instructions below.

Use these links to access content once you have a ScienceDirect profile.
How to create a ScienceDirect registered user account?   
Find the online Journal ID sent with your ASMS membership dues receipt (email). You will need this for your ScienceDirect registration. Contact the ASMS office, if you need help finding your Journal ID.

Next  go to ScienceDirect Activation Page and follow instructions to create your registered user account.