The internal standard dropped 40% and nobody can tell you why.

Five practical resources for regulated bioanalysis. $130 separately. $69 together.

Ion suppression never announces itself. It arrives as a recovery that won't reproduce, an internal standard that drifts between runs, an incurred sample reanalysis that fails at the worst possible moment — on a method that worked perfectly on neat standards.

LC-MS problems are rarely in the mass spectrometer. They're in the matrix, the extraction, the transitions someone chose two months ago, and the assumptions nobody wrote down.

This library is what I wish had been on my desk the first time I had to defend a bioanalytical method.

What's inside

• Bioanalytical LC-MS Method Development & Validation to Regulatory Standard — the full route, built to what regulators actually ask for
• LC-MS Practical Guide — principle, method development, method validation
• The Practical LC-MS Troubleshooting Atlas — visual diagnosis by symptom: suppression, carryover, adducts, response drift, poor recovery
• LC-MS — 6 Practical Courses
• LC-MS Bioanalytical Assay Method Validation — validation report and Excel calculation templates, ready to fill in

Who it's for

Bioanalytical scientists, LC-MS/MS method developers and validation leads working to ICH M10 in regulated bioanalysis — pharma, biotech and CRO laboratories.

Who wrote it

Mirela Gorjanu, MSc — senior pharmaceutical chemist, twenty years in drug development and compliance, including bioanalytical LC-MS/MS. Written from methods that had to survive an audit.

What it costs

$130 if you bought the five separately. $69 for the library.

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