LTQ-ESI. The electrospray interface on the LTQ (Linear Trap Quadrupole).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/53332339@N00">Michael Pereckas</a> from Milwaukee, WI, USA
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/53332339@N00/6562117/">LTQ-ESI</a>