G - Physics – 01 – N
Patent
G - Physics
01
N
167/43
G01N 33/52 (2006.01) G01N 31/22 (2006.01) G01N 33/543 (2006.01) G01N 33/549 (2006.01)
Patent
CA 1124644
An element for the analysis or transport of liquid, especially aqueous liquids, contains a struc- ture comprising a plurality of heat-stable, organo- polymeric particles nonswellable in and impermeable to the liquid, and an adhesive concentrated at particle surface areas contiguous adjacent particles, bonding the particles into a coherent, three-dimensional lat- tice which is nonswellable in the liquid. A substan- tial portion of the particle surface area in this lat- tice structure is therefore effectively free from adhesive. The lattice structure has interconnected void spaces among the particles representing a total void volume of about 25 to 80 percent to provide for transport of the liquid. The adhesive comprises an organic polymer different from that of the particles and insoluble in the liquid under analysis. The amount of adhesive in the structure is less than 10 weight percent of the particles. The particulate structure of these elements can contain interactive compositions useful for the analysis of various substances in liquids, especially high-molecular-weight proteinaceous substances in aqueous biological liquids. Multizone elements con- taining, in fluid contact, at least two zones having a particulate structure as described above or one such zone together with other functional zones are also disclosed.
341633
Frank David S.
Pierce Zona R.
Eastman Kodak Company
Gowling Lafleur Henderson Llp
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