In my statistics course, similarly to I guess all other teachers concerned in calibration, I teach that for instrumental analyses weighted linear regression should be used. Why? Non-weighted linear regression (the one we can use with LINEST, SLOPE and INTERCEPT in excel) assumes same signal precision (repeatability standard deviation in other words) for all concentrations […]
From 20th to 29th of July 47th International Chemistry Olympiad (IChO) was held in Baku, Azerbaijan. All together 290 form 75 countries solved 3 practical and 8 theoretical tasks. This Olympiad was definitely one of the hardest in IChO history, most probably being hard to solve for a masters student not only for high school […]
I started writing this blog to share with you some fascinating stuff I come across every once in a while. I try to cover not only the research of me and my co-workers but also other fabulous scientific papers. Also I give some practical tips concerning statistics, optimization of analytical methods (especially LC and MS) […]