What is GC-ECD?

GC-ECD stands for Gas Chromatography with Electron Capture Detector. It's a highly sensitive analytical technique used to detect trace amounts of specific compounds, particularly halogenated compounds (like pesticides, PCBs, and flame retardants), in a sample. The ECD works by measuring changes in current caused by electron-capturing compounds passing through a radioactive source. It's commonly used in environmental monitoring, food safety analysis, and drug testing.