FNSC2200 Lecture Notes - Lecture 12: Inductively Coupled Plasma Mass Spectrometry, Free-Range Eggs, Calibration Curve
Document Summary
Issues in food fraud: counterfeit: milk formula, honey. Icp ms: process, advantages, disadvantages, application: eggs, pork, wine p2 food fraud. P3 counterfeiting e. g. inclusion of melamine powder in baby milk formula p4 counterfeiting manuka honey. Method: gcms full sample and head space analysis. Individualizing the classification of this honey can devise a reference for further samples. P5 gcms / hplc: assess organic compounds in samples. Plasma: cause ionization, e- behave as a collective. Plasma ionize the samples and create ms spectra, trace minerals in sample. Sample intro ion formation ion separation ion detection. Diff charge ratios/ size of molecules determine how molecules react to electric field. Ions is read by detector and translated to counts. Calibration curve is created based on the # of counts. P12 icp ms / the process of chemical fingerprinting. If liquid must be suitable for plasma (diluted) interpret results. Icp ms: trace mineral profile/fp on egg shell. Conclusion: aus ham wasn"t matching aus ham origin.
