How do you measure how to fond preservatives in food?

To measure preservatives in food, analytical techniques such as High-Performance Liquid Chromatography (HPLC) and Gas Chromatography (GC) are commonly used. These methods separate, identify, and quantify the preservatives present in food samples. Additionally, spectroscopic methods like Mass Spectrometry (MS) can be combined with these techniques for more precise identification. Sample preparation often involves extracting the preservatives from the food matrix, followed by dilution and filtration before analysis.