- by /u/Intrepid-Hair2129submitted by /u/Intrepid-Hair2129 [link] [comments]
- by /u/idkuralieHi, I'm new at my job and an hydrogen generator is not working because of a error "float chamber". The generator is a 20H from Parker haniffin and is used for a gc/fid. I tried to remove the water from the "separation chamber" but it is still not working. Does anyone of you know what I can do to resolve this issue? The generator is from 2014 and no maintenance or part replacement has been carried out since its installation. I contacted Parker and an other company answered but there are far from my location and kind of expensive. Sorry […]
- by /u/SuitableDependent138submitted by /u/SuitableDependent138 [link] [comments]
- by /u/redhamster2009Is there a good way to clean distillation glassware? Im using a vacuum distillation instrument and I can never get the boiling or receiving flask totally clean. There is some dark residue from overheating boiling chips, and a film that never goes away. Per the ASTM method, im using toluene to clean the system, and then I rinse the glassware in soapy water and finish with IPA. Reluctant to scrub at all since it is used under vacuum. submitted by /u/redhamster2009 [link] [comments]
- by /u/Bloodmoon1125Hello, I don’t know if this would be the correct subreddit to ask but I’ll be taking the analytical ACS exam soon and wanted to see if anyone had any knowledge of what topics are generally covered so I can narrow down my list. submitted by /u/Bloodmoon1125 [link] [comments]
- by /u/Awkward_Metal_5427Hi, I need help. Two weeks back in our lab we changed septa and liner in Shimadzu GC-2030 for a new ones and after that the tuning is just not good. We tightened everything, repeatedly checked if it's good etc. and still, judging from our autotune, we have a leak somewhere. We already tried septa placing, liner (even O-ring), column attachement and proper lenght on both sides, checked the door into GC and MS. Nothing found and the tuning still shows that nitrogen inside is pretty high (much higher than before). Also lower vacuum is lower (lol) than before, so […]
- by /u/chivesngarlicHi r/AnalyticalChemistry, I am an Orthopaedic research fellow so please forgive any crimes against terminology in advance. The basic idea (a bones guy’s version): I work at a high-volume hospital system in Louisiana and I’m trying to run a pilot study (~10–20 patients) where we: • Collect synovial fluid from patients undergoing revision total knee arthroplasty (TKA) for suspected Poly wear • Explant the polyethylene tibial insert and have it analyzed for volumetric/mass wear (this part I have a lab that can handle) • Do a gravimetric analysis of the synovial fluid to quantify how much polyethylene/plastic junk is floating […]
- by /u/vaguelystickyTrying to hire a senior Lab Director (LC-MS/HPLC, method development, USP , ISO 17025 experience). I assumed there would be a big talent pool given all the layoffs, funding cuts, and biotech reshuffling — but it’s been surprisingly hard to surface the right people. If you recruit in science, or are a scientist who’s made career moves recently: Where do serious candidates actually look? LinkedIn? Associations? Alumni networks? Niche job boards? Recruiters? Not looking for entry-level — this is a leadership role with equity and autonomy. Any direction would help. DM if you want details. submitted by /u/vaguelysticky [link] [comments]
- by /u/PurplePanda254submitted by /u/PurplePanda254 [link] [comments]
- by /u/SomewhereStraight864Hi everyone, I’m a first-year PhD student in Chemistry here in the US, and I could really use some honest advice from people who’ve been through this. I just finished my three rotations this semester, and I’m now joining the analytical division. My research will involve instrumentation and single-molecule studies. Exciting on paper… terrifying in reality. My new supervisor gave me three research papers to read and prepare a graded presentation on in two weeks. Here’s the problem: I don’t understand a single thing in these papers. Not the introduction. Not the methods. Not the figures. Nothing. Every time I […]
- by /u/Additional_Quail_690I'm 18, and together with one of my classmates I’ve created an app that helps with making dilutions. The app lets you prepare a solution at a desired concentration with very low error by combining different volumes taken from various volumetric flasks, with up to four consecutive dilution steps. It’s been really useful for our school chemistry lab work. Since I don’t really know how the professional chemistry world works, I was wondering whether this app could also be useful in a work environment, and whether it would make sense to publish it. submitted by /u/Additional_Quail_690 [link] [comments]
- by /u/Electronic-Talk-8780submitted by
Mass spectrometry websites, social media, journal feeds, and other links and items of interest to the mass spectrometry community.
