Today was spent mostly taking apart complicated bits of kit and putting them back together again. We had a training course in GC/MS maintainance, including such delightful topics as cleaning the ion source (quite pretty and shiny I think), and troubleshooting for low sensitivity. It's really interesting getting to learn more about how this sort of equipment is put together. Reading the theory of how it all works isn't the same as seeing all the bits for yourself, and working out how it all goes together. Something that looks incredibly complex to begin with gradually becomes less scary and more familiar. I took photos of various stages of the cleaning process to remind myself what to do in future. This particular image reminded me of the USS Enterprise. Don't you think? See the door in the background, and the entrance to the Jefferies tube in the floor. No? Following the maintainance course I went to this weeks' Heritage Research seminar over in King's Manor,...