TY  - RPRT
TI  - A device for automated direct sampling and quantitation from solid-phase sorbent extraction cards by electrospray tandem mass spectrometry.
AU  - Timothy Wachs
AU  - Jack Henion
PY  - 2003
DO  - 10.1021/ac020501y
UR  - https://pubmed.ncbi.nlm.nih.gov/12705615/
ID  - 12705615
ER  -