Knowledge hub
Guides for chemical buyers & lab teams
Grades, documentation, regulation, logistics and lab maths — written by chemists for procurement, QC and R&D teams.
Lab Practice
Storage and Shelf Life of Laboratory Chemicals
Good storage protects people and keeps reagents within specification. Practical rules for segregation, temperature, moisture, peroxide formers and dating.
4 min readLab PracticeDeuterated Internal Standards in LC-MS Bioanalysis
A good internal standard makes LC-MS quantitation robust. Learn why labelled standards are preferred, how to select one and the pitfalls to avoid.
5 min readLab PracticeHow to Calculate Molarity, Normality and Dilutions
Step-by-step worked examples for preparing solutions: molarity, normality, percent concentrations, diluting concentrated acids and avoiding hydrate errors.
4 min readLab PracticeHPLC Solvent Selection Guide: UV Cutoff, Purity and Grades
The mobile phase decides your baseline, pressure and sensitivity. A practical guide to UV cutoffs, viscosity, buffers and choosing the right solvent grade.
4 min read