The pH meter is calibrated — yet the reading still fluctuates? The cause is often not the device itself, but unsuitable buffer solutions, temperature differences, or small errors in handling the electrode. Learn how to calibrate pH measurements...

Methylene blue is one of the best-known dyes in laboratories worldwide. Whether in microscopy, microbiology or scientific research – the characteristic blue solution is used to visualize structures, differentiate samples, and in various analytical procedures. Here you will...