The Lab Notebook
How quality is actually measured.
Plain-English articles on the analytical methods, quality documents and handling that decide whether a research material is what it claims to be.
Analytical chemistry
UPLC vs HPLC
A purity result is only meaningful in the context of a suitable, validated method. What the instrument, column and conditions can—and cannot—tell you.
Read articleQuality control
Read a CoA Like a Chemist
A Certificate of Analysis is only as trustworthy as the six things worth checking on it. Here are all six.
Read articleHandling & stability
How Good Materials Go Bad
A verified material can degrade before it's ever studied. What temperature, light, moisture and time do — and how to prevent it.
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