Acknowledgment as technician. Do I list them in the CV? How?
Employers outside academia usually aren't interested in publications but rather in your abilities and any deliverables you can associate those abilities with.

How specifically you highlight those abilities completely depends on the job you are applying for. For example, if you were applying for a position where you would be doing LC/MS, you could write in your resume that you "processed LC/MS samples in support of three projects leading to publishable papers."

If you were applying for an academic job, I'd be more likely to suggest including the papers your were acknowledged in, along with a note about what you were acknowledged for.