This invention provides a one-piece multilayer article for use in solid phase extraction that includes at least two porous support layers and a solid phase extraction medium, wherein the porous support layers are thermo-mechanically attached at at least one thermo-mechanical attachment site. At least one of the porous support layers can be a prefilter layer.
申请公布号
DE69913180(T2)
申请公布日期
2004.09.09
申请号
DE1999613180T
申请日期
1999.09.13
申请人
3M INNOVATIVE PROPERTIES CO., SAINT PAUL
发明人
PERMAN, A.;ANSERA, K.;WISTED, E.;BERRIGAN, R.;JACOBSON, R.;BAYER, H.