| We have used a microfabricated planar quadrupole as a test bed for evaluating DEP-based traps, using polystyrene beads as a model for cells. |
| The technology creates precursor ions by way of ionization of air and then filtration through a primary quadrupole analyzer. |
| Furthermore, matrix methods and phase-space dynamics are introduced as a means of modelling the quadrupole ion trap. |
| In addition, they say it is the only object ever observed to have a predominantly quadrupole magnetic field. |
| Motions that change the quadrupole interaction while an echo is being formed contribute to echo decay. |
| For this protein, representation of its electrostatic properties by a quadrupole moment seems more appropriate. |
