Baseline drift and ghost peaks that survive column replacement mean the obvious suspects have been ruled out. Water seldom makes the troubleshooting list. At 18.2 MΩ · cm, the lab treats an ionic measurement as a guarantee of total purity. That conflation leaves trace organics and particulates free to accumulate on the column head, producing failure signatures that mimic hardware degradation.

This compendium leads with a structured troubleshooting guide that isolates those failure signatures to their specific impurity source. The guide covers liquid chromatography in depth and extends the same diagnostic framework to cell culture and molecular biology workflows. A supporting case study documents in-house ultrapure system deployment across AAS, HPLC, and GC.
Download the compendium to:
- Match peak anomalies and baseline symptoms to specific impurity classes using side-by-side chromatograms
- Apply a grade-selection framework across more than 20 analytical techniques to specify the purification tier each method requires
- Bonus: benchmark your lab's water and energy consumption against published institutional data to build the operational case for system upgrade



