Technical notes and the documents that support them.
Written by the quality and production teams. Every document listed here downloads without a form.
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The OOS Trap
Why laboratory investigations fail to find a root cause, and the inputs nobody checks.
Purohith Makala, Managing Director
Why UV cutoff matters in HPLC solvent selection
A solvent that passes a purity assay can still ruin a low-wavelength method. UV cutoff, gradient baseline drift and trace absorbing impurities decide whether a separation is usable.
Quality Control Laboratory · 18 June 2026 · 6 min read
Technical Notes
Reading a certificate of analysis: what actually matters
A COA is a release document, not a marketing sheet. Here is how to read one during vendor qualification, and which fields auditors check first.
Quality Assurance · 27 May 2026 · 5 min read
Industry
Excipient qualification for Indian formulators
Multi-compendial excipients simplify filings only when the supporting documentation is complete. A practical view of what a formulation team should collect before first use.
Technical Services · 9 April 2026 · 7 min read
