You cannot do what you want to do in SAP without customization (and a significant amount).
You can not actually consume lab chemicals against a specific MIC in an inspection lot.
Most labs expense their chemicals against a general cost center when they receipt them. Usually they do not track inventory levels. Or.. they track inventory in the warehouse, but when a bottle is removed from the warehouse, the bottled is expensed against a cost center at that time and removed from inventory.
If you have a specific requirement, my suggestion might be to create a special internal quality notification and in the notification list consumptions. During results recording the notification is created and amounts recorded. Than maybe run a program at night to do the inventory moves. This could be a lot of work for a technician in the lab.
FF