摘要：The development of bioanalytical methods has become challenging due to sample complexity, requirements for method reliability, and speed of analysis with triple quadrupole LC-MS/MS used widely for the routine analysis of biological materials. The article presents the method development and validation results for pelargonidin and malvidin in potato tubers. The developed method uses a short C18 column, is able to measure all six common anthocyanidins, uses a binary mobile phase with acetonitrile and water both with added 1% formic acid, ESI ionisation in positive mode, 3-h hydrolysis with 2.7 M methanolic HCl at 90°C. For pelargonidin and malvidin, the method shows high recovery of 98–100%, intra-day repeatability of 6.7–17.9% (depending on the analyte and concentration level), uncertainty below 20%, and uses quadratic calibration.
关键词：acid hydrolysis; method development; Solanum tuberosum L.
