Chromatographic methods
Chromatography separates components of a sample as they move through a system under defined conditions. A chromatogram can show a primary peak and additional detected components. The reported purity is tied to the method, detector, integration, and sample conditions.
Mass-based identity methods
Mass-spectrometric methods evaluate mass-related signals and can support compound identity. Identity support and chromatographic purity are separate questions, so they may appear as separate parts of a report.
Quantitative testing
A quantity or content claim requires a method designed and calibrated for measurement of amount. A high chromatographic purity percentage does not by itself prove the total amount of material in a container.
Additional analytical questions
Water or moisture
Evaluates moisture under a specified method and sample condition.
Residual solvents
Looks for specified solvent residues using an appropriate analytical method.
Microbial or endotoxin testing
Requires separate testing and should never be inferred from a purity chromatogram.
Read the scope, not just the headline number
A trustworthy interpretation starts with the sample identity, method, batch number, date, units, and report scope. No single method answers every quality question.
