1. The value of your degree lies more in the way it has shaped your thinking that what you studied in.
2. Apply to smaller companies - they are more flexible that bigger ones
3. Let your cv show your character seeing as work experience won't be the selling point. Dependable, hard working, interested, flexible, willing to learn, smart etc. It may be a little sad to say "use power words" but a cv's intention is only to get you in the door
4. Shotgun the market. Send your cv to every employment agency in the book. Follow up a day later with a telephone call. A week later phone again. A week after than send your cv again. Get to know an agent. Go on interviews even if the jobs don't strike you as interesting first off: you show the agent your keen and you get familiar with the questions for the day the job you want does appear. Agents are crap at representing the job correctly: the most interesting sounding one on paper can be duds and the least interesting on paper very interesting once you get talking to the employer themselves.
5. Forget title - seek opportunity. Lab Technician in one company can mean Lab Technician. In another you could have the run of the place simply because your keen. Keen employees float to the surface - all you have to ascertain is that there is a surface available for you to float to
6. Never get disheartened. You will get dozens of refusals. That's not a reflection on you its a reflection on what you want.
7. If you get a decent job this way let me know. I'll know my advice isn't a load of crap