Molecular Biology Grade Grinding Beads are treated to inactivate contaminating enzymes and have been tested accordingly. Low Binding Grinding Beads are coated to reduce non-specific binding of nucleic acids and proteins and are used for lysing dilute samples of cells. Acid Washed Grinding Beads are treated to remove fine particles and contaminants. They are suitable for most basic applications.
SPEX SamplePrep offers all three grades in a variety of sizes.
2160 Silica Grinding Beads: Acid washed silica beads, size ranges from 800-1000 µm, 200 gram bottle.
2161 Silica Grinding Beads – Molecular Biology Grade: Acid washed RNase/DNase-free treated silica beads, size ranges from 800-1000 µm, 200 gram bottle.
2162 800 µm Low Binding Silica Beads: Acid washed and chemically treated to keep samples from binding to titer plate wells, 200 gram bottle.
2165 Silica Grinding Beads: Acid washed silica beads, size ranges from 400-600 µm, 200 gram bottle.
2166 Silica Grinding Beads – Molecular Biology Grade: Acid washed RNase/DNase-free treated silica beads, size ranges from 400-600 µm, 200 gram bottle.
2167 400 µm Low Binding Silica Beads: Acid washed and chemically treated to keep samples from binding to titer plate wells, 200 gram bottle.
2168 100 µm Low Binding Silica Beads: Acid washed and chemically treated to keep samples from binding to titer plate wells, 200 gram bottle.
2170 Silica Grinding Resin: Acid washed irregular silica resin, size ranges from 100-400 µm, 200 gram bottle.
2171 Silica Grinding Resin – Molecular Biology Grade: Acid washed RNase/DNase-free treated irregular silica resin, size ranges from 100-400 µm, 200 gram bottle.
2180 Zirconium Grinding Beads – Molecular Biology Grade: Acid washed RNase/DNase-free treated zirconium beads, size ranges from 200-400 µm, 250 gram bottle.
2181 100 µm Low Binding Zirconium Beads: Acid washed and chemically treated to keep samples from binding to titer plate wells, 250 gram bottle.
2182 200 µm Low Binding Zirconium Beads: Acid washed and chemically treated to keep samples from binding to titer plate wells, 250 gram bottle.
NOTE: These products are only available for sale to Domestic U.S. Customers.