| 摘要 |
<p>A method for electrically charging a probe/spray head/pin tool by plasma technology for use in pipetting compounds in small volumes includes the steps of placing the probe to be charged in a plasma chamber; creating a vacuum within the plasma chamber and then introducing a stable gas into the plasma chamber; applying electromagnetic energy to the plasma chamber with an electrode or by using the probe as the electrode, thereby molecularly disassociating the gas, thus creating charged ions, free electrons, and free radicals, charging the probe by the free radicals attaching to the probe; venting the plasma chamber to back to atmospheric pressure; and removing the charged probe from the plasma chamber, whereby the charged probe can pipette compounds in small volumes. The method is applicable to pipetting both liquid and solid compounds.</p> |
