Notes from building the OpenRAMAN Performance Edition

[ChemistryGeek]

Hi Luc

Thanks again for you kind responses. Out of interest which TEC cooled camera are you going for for your application? I think reading your response confirms how little I understand on this subject, I kind of thought previously that more power is not necessarily a good thing in Raman as you are going to excite more fluorescence and the filters and optics have to be good enough to cope with the power but the paradox for me is that both the Thermo handheld Raman instrument and the BWtek (Metrohm) Raman portable instrument appear to operate at between 400mW and 450mW 785nm. The handheld is through space and the Metrohm instruments have a fibre coupling to allow connection to a measurement cuvette. My original thought was to buy the OEM parts from BWTek and build one of their instruments this way but the price point was pretty much identical to the Commercial off the shelf device at around £60K plus VAT and that is too much for my pocket. I will spend some more time reading the article as the data looks interesting. At the end of the day provided the instrument can delivery good enough quality data to confirm concentration of a particular substance in water then it will be fine for me but I need to get down to maybe 0.5 mg/ml which can be a challenge for some instruments. Many thanks again for your help on this which is much appreciated.

Regards

ChemistryGeek