buffers and water
Volumetric preparation versus top-up habits
A volumetric flask is calibrated at a stated temperature, often 20 °C. Dissolving below the mark and topping a beaker by eye are different kinds of promise.
8 October 2026 · 8 min read
Topic cluster
Buffers and laboratory water
Water grades, buffer preparation, pH measurement and the errors that quietly change an enzyme assay.
All topicsBuffers and laboratory water26Cell culture26Chromatography26Cold chain and sample storage26Cytometry and microscopy26DNA sequencing26Gels and blotting26Gene expression26Genome editing26Immunoassays26Laboratory labware26Laboratory safety26Liquid handling26Microbiology26Molecular cloning26Nucleic acid purification26PCR and amplification26Protein biochemistry26Proteomics26Research sourcing and study design26
specificationenquiryglossarytroubleshootingbufferscalibrationglasswareautoclavepcrphvolumetricwaterenzymesreagentsendotoxinassaysdetergentsfume hood
26 articles
buffers and water
Weighing hygroscopic salts
Weigh the hydrate printed on the bottle. Humidity adds water to the pan, and an invented drying step can destroy the solid you meant to keep.
8 October 2026 · 9 min read