1) Journal of Chromatography B: Biomedical Sciences and Applications
Volume 692, Issue 2, 9 May 1997, Pages 245-256
- DOI:
http://dx.doi.org/10.1016/S0378-4347(96)00507-5
Volume 502, 1990, Pages 385-392
- DOI:
http://dx.doi.org/10.1016/S0021-9673(01)89603-5
Volume 166, Issue 2, 11 December 1978, Pages 637-640
- DOI:
http://dx.doi.org/10.1016/S0021-9673(00)95654-1