Blank value rises, measurements fluctuate, or suddenly a substance appears that should not be in the sample at all? The cause is often inconspicuous contamination. Find out which eight errors most frequently contaminate samples and reagents and how...

A titration seems simple: add the titrant, recognize the endpoint, calculate the result. But air bubbles in the burette, the wrong indicator, or a changed titrant concentration can significantly distort the result. Learn how to recognize typical titration...