- by /u/Afsh31Could anyone please tell me how to extract the micronised drug from a suspension vehicle. I have tried vortexing the container but the recovery was less, also tried sonicating the contents of container but still got less results. The suspension contains propylene glycol, that might be interfering in low recovery. If there’s any useful study material available online please share .. TIA submitted by /u/Afsh31 [link] [comments]
- by /u/Express_Presence9863I want to add a calculation formula in Qtegra. I want to calculate a percentage based on the concentration of each element and include it in the final report. submitted by /u/Express_Presence9863 [link] [comments]
- by /u/vietbabyxI’m a new faculty member and inherited a Shimadzu FTIR and an Agilent GC/MS that haven’t been used in years. There are no SOPs, no instructions, no software guides and no one on campus who knows how to run them. I’m trying to figure out how to actually operate them, both the hardware and the software. I don’t know where to start. Any advice would be greatly appreciated! submitted by /u/vietbabyx [link] [comments]
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- by /u/Dry_Performance1344I am providing a xrf service at lab level and curious if there is any demand. Visit my website Rapid Analytical LLC if interested submitted by /u/Dry_Performance1344 [link] [comments]
- 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 […]
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