Independent analytical testing. Results apply only to the sample received, for research use only.

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Reference standard

Seen on content reports.

Definition

Material of known identity and assigned value used to calibrate a quantitative measurement. A content result can be no better than the standard behind it, and for some research-stage compounds no suitable standard is obtainable.

Related terms

Calibration curve
The relationship between analyte concentration and detector response, built from standards across a working range.
Peptide content
The measured amount of target peptide in the sample as submitted, determined against a calibrated reference standard and expressed on a stated basis.

About quantitation and content

How much is actually there, on what basis, and against what standard.

Label claimPeptide base versus gross saltCounter-ionResidual moistureLinearityWorking rangeRecoveryLimit of detectionLimit of quantitationReporting limitMeasurement uncertaintyMatrix effect

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