Question: what are some ways to determine when a sample should be assigned to a chemist (a trigger)? How to determine the maximum number of samples a chemist should be "working on".
Background: Chemists working in a lab where a small sample of material is assigned to a chemist who performs a variety of tests with the end result being an assay that indicates the makeup of the sample. Each chemist can have about 12 samples assigned to them at the same time. Each sample has a due date. There are about 15 different types of samples and the number of tests (complexity) a chemist needs to perform on different samples can vary. Some steps like an oven step or a dissolving step do not require the chemist to stand there for, say an hour watching the hot plate or the oven. They can work on other samples assigned to them. If, they have too many samples in process at the same time, proper attention can be lacking and hot plates burn, mistakes occur, etc., (picture the spinning plates analogy).
Thoughts on the 2 questions above?