TY - RPRT TI - Funnelform single-drop microextraction for gas chromatography-electron-capture detection. AU - Li-li Qian AU - You-zhao He PY - 2006 DO - 10.1016/j.chroma.2006.08.094 UR - https://pubmed.ncbi.nlm.nih.gov/16996070/ ID - 16996070 ER -