Set of 600 || S&S/WHATMAN 740E Filter Paper Circle 0.5in #10328170 (S&S 15120)
Grade 740-E Special-Purpose Filter Paper, 1/2 inch (1.27 cm) diameter. Thick, absorbent cotton linter for use as an antibiotic assay test disc. Specified in standard tests for antibiotic susceptibility and antibiotic levels in milk. Coarse porosity. Fast flow rate. Retains 20 to 30 μm particles. Sold open and unsterilized. (You’d probably want to take it out of the plastic before sterilizing!) Thickness is roughly 0.7 mm, as measured by the seller, so these discs are pretty stiff. Ships on the next business day by USPS Ground Advantage (USA only). Item: 600x740E
S&S/WHATMAN 740E Filter Paper Circles, 0.5in/12.7mm Diam #10328170 (S&S 15120)
Brand new! Pack never opened! 1000 circles in pack
S&S Optitran BA-S 85 Nitrocellulose Filter, pk/50, 82mm diam, 0.45µ #10439116
Nitrocellulose provides high sensitivity with very low nonspecific binding, but by itself can be awkward to handle. Circular format for plaque lifts and other kinds of blot transfers. The pore size of the filter is 0.45 μm.
S&S/WHATMAN 740E Filter Paper Circles, 0.5in/12.7mm Diam #10328170 (S&S 15120)
Item: 740E. Thick, absorbent cotton linter for use as an antibiotic assay test disc. Specified in standard tests for antibiotic susceptibility and antibiotic levels in milk. Coarse porosity. Fast flow rate.