OUR THINKING
Notes from the lab.
Application notes, technique guides, and industry perspectives from the LDY CO team — written for the analysts and lab managers we work with every day.
Application Notes
Optimizing HPLC column selection for impurity profiling in API manufacturing
Column chemistry decisions made in method development echo through every release batch. A practical framework for choosing C18 alternatives when impurity peaks won't separate.
Read article →Industry Insights
What the 2025 USP <467> revision means for residual solvents testing in MENA
The latest revision tightens Class 2 solvent limits and reshapes the validation work pharma QC labs in Egypt and the GCC need to plan for in 2026.
Technique Guides
A practical guide to Karl Fischer titration for water content in pharma intermediates
Volumetric or coulometric? How to choose, prep your sample, and troubleshoot drift without burning a week of method development.