Yeah, basically I'm doing practicum HPLC in my college. I can use the machine and do the mathematical work, but I'm useless in understanding the concept. So, any help would be much appreciated.
1. What is "reproducibility" actually? And how can we see that we have done is reproducable?
2. When can we say that the internal standard methode has to be used instead of the external standard one to get a better result?
Thanks and sorry for my English.