When you go abroad on visits, beam times and the like, IT IS SIMPLY FORBIDDEN to bring chemicals along on passenger planes due to air safety. Air safety is taken very seriously these days, and zero tolerance policies apply.

Contact Jonas Rask Christensen a week in advance (NOT the day before), and have your samples declared correctly according to the IATA rules. Then they can be shipped with a courier approved for handling chemicals, and will be ready for you when you arrive.