You’re a scientist, a research scientist. You are conducting a study and in need of Reference Materials for your study. In this case you’re wanting to use the Reference Material: Kelp Powder. No problem! There are many places you can easily purchase Kelp Powder (Thallus laminariae).
However, here’s the glitch. WHICH Kelp Powder is best for your study? Each Reference Material (in this case Kelp) contains different chemical constituents and composition that could influence your study.