Number | Name | Date | Kind |
---|---|---|---|
3085687 | Erbach | Apr 1963 | |
3992301 | Shippey et al. | Nov 1976 | |
4213859 | Smakman et al. | Jul 1980 | |
4842745 | Weiler et al. | Jun 1989 | |
4921610 | Ford et al. | May 1990 | |
4943379 | Boze et al. | Jul 1990 | |
4963253 | Yen | Oct 1990 | |
4973406 | Poazielli | Nov 1990 | |
4986918 | Breelan et al. | Jan 1991 | |
5013341 | Isaksson et al. | May 1991 | |
5032265 | Jha et al. | Jul 1991 | |
5071565 | Fritz et al. | Dec 1991 | |
5071610 | Hagen et al. | Dec 1991 | |
5110733 | Kim et al. | May 1992 | |
5132015 | Down | Jul 1992 | |
5147539 | Hagen et al. | Sep 1992 | |
5207915 | Hagen et al. | May 1993 | |
5242598 | Shannon et al. | Sep 1993 | |
5248428 | Hagen et al. | Sep 1993 | |
5279742 | Markel et al. | Jan 1994 |
Number | Date | Country |
---|---|---|
0498557A1 | Aug 1992 | EPX |
2583036 | Dec 1986 | FRX |
WO8703217 | Jun 1987 | WOX |
WO9300163 | Jan 1993 | WOX |
Entry |
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Horack et al., Perspectives from the Leading Edge in Solid Phase Extraction, LC.GC 11, No. 2, pp. 74-90 (Feb. 1993). |
Markell, C., Hagen, D. F., and Bunnelle, V. A., New Technologies in Solid-Phase Extraction, LCGC The Magazine of Separation Science, vol. 9, No. 5 (1991). |
Hagen, D. F., Markell, C. G., Schmitt, G. A., and Blevins, D. D., Membrane Approach To Solid-Phase Extractions, Analytica Chimica Acta, 236 157-164 (1990). |
O'Donnell et al., Proceedings from Seventh Annual Waste Testing and Quality Assurance Symposium, 2, 182-194, Washington, DC (Jul. 8-12, 1991). |
Hogan, Particulates Captured/Carried By Fibrillated PTFE, Design News (Feb. 9, 1987). |