I found a useful advice if I cannot reproduce computational published results in (What should you do if you cannot reproduce published results?). However I would like to ask the same situation with experimental results.
I am from chemistry, and it often involves synthesis of compounds. I know every lab in the world cannot be identical even if all equipment are the same, because many external factors such as climate, humidity, lab temperature, etc. may possibly interfere with the experiment.
If I have followed all the steps described in the literature, from the source and purity of chemicals to every single step described, but still I cannot reproduce the results (evidence from some characterization techniques), what can I do? Should I contact the author to give me all 'hidden' steps like the size of beaker, etc.? Or the journal reviewers think that the authors have already disclosed enough information for others to reproduce it, so the remaining job to investigate how to reproduce the results is on me? However sometimes the description is really vague, like 'drying in a vacuum oven at 50oC for 10 minutes', but what is the degree of vacuum?
(Sometimes the size of beaker may play a role, as evaporation way affects its crystal size, also the position of drying compounds in oven, etc.)