TY  - GEN
AU  - Niessen,  W.M.A.
TI  - Liquid chromatography-mass spectrometry
SN  - 0824719360
U1  - 543.0894 
PY  - 1999///
CY  - New York
PB  - Marcel Dekker 
KW  - CHEMISTRY
UR  - www.dekker.com
ER  -