PARTICLES

摘要

Waters Corp. has published a rapid method for the detection of melamine in infant formula and liquid milk as outlined by requirements of China's Ministry of Science and Technology (M.O.S.T.). The new method uses Waters~? ACQUITY~? TQD, liquid chromatography combined with tandem quadrupole mass spec-trometry (UPLC/MS/MS) operated in Multiple Reaction Monitoring (MRM) mode, and Waters' MassLynx? 4.1 Software with InteliiStart? technology for data acquisition and MS parameters optimization. M.O.S.T. seeks accurate, reproducible detection of melamine of ≤2 mg/kg (ppm). Waters' UPLC/MS/MS detection method can detect melamine contamination as low as 1 ug/ kg (ppb) with an achievable sample throughput better than one sample every 15 minutes.