42 ashless filter paper  (Danaher Inc)

Journal: ACS Omega

Article Title: Development of Novel Paper-Based Assay for Direct Serum Separation

doi: 10.1021/acsomega.3c00215

Figure Lengend Snippet: Serum separation on wax-channeled filter paper grade 42 treated with different coagulation factors, followed by addition of equal volumes of whole fresh blood (3 μL). (A) 3 μL of Cephalin Kaolin, thromboplastin, and PT reagents in duplicates. (B) 6 μL of Cephalin Kaolin, thromboplastin, and PT reagents in duplicates. (C) 3 μL of APTT reagent plus 3 μL of CaCl 2 in duplicate. (D) 1.5 μL of APTT reagent plus 1.5 μL of CaCl 2 . (E) 3 μL of CaCl 2 only. (F) 3 μL of blood, followed by addition of CaCl 2 only.

Article Snippet: Different filter papers were tested for serum separation using the membrane filtration approach including Whatman qualitative filter paper grades 1, 3, 5, 6, and 598 with particle retention liquid of 11, 6, 2.5, 3, and 8–10 μm, respectively, and Whatman quantitative ashless filter paper grade 42 with particle retention liquid of 2.5 μm and chromatography paper (Whatman, USA).

Techniques: Coagulation

Journal: ACS Omega

Article Title: Development of Novel Paper-Based Assay for Direct Serum Separation

doi: 10.1021/acsomega.3c00215

Figure Lengend Snippet: Purity of paper-based serum separation using a light compound microscope (40×). 5 μL of APTT reagent plus 5 μL of CaCl 2 , followed by addition of 5 μL fresh blood on channeled filter paper grade 42.

Article Snippet: Different filter papers were tested for serum separation using the membrane filtration approach including Whatman qualitative filter paper grades 1, 3, 5, 6, and 598 with particle retention liquid of 11, 6, 2.5, 3, and 8–10 μm, respectively, and Whatman quantitative ashless filter paper grade 42 with particle retention liquid of 2.5 μm and chromatography paper (Whatman, USA).

Techniques: Microscopy