| 摘要 |
Devices and apparatus are disclosed for rapid, consistent, precise and accurate formation of standard solutions for use as reference samples without error, excessive costs, waste and degradations problems. The reference sample is formed by drawing in carrier (26) through tubing (32). Tubing (32) terminates in a tip (34) which is inserted into a body of carrier (26) which is drawn upward through the tubing (32) by a pump within the instrument. As the carrier is drawn up the tubing (32), it encounters a body of analyte (10) retained in place by barriers (12 and 14). The carrier (26) passes through the barriers (12 and 14), simultaneously dissolving the analyte (10), such that when the resulting solution reaches the instrument through the remaining portion of tubing (32), it has formed a measured predetermined reference solution sample, as with the pipette systems. Since the tubing (32) is flexible, it will be preferred that the analyte (10) be in the form of lyophilized or solid particles, granules, solid balls or coated balls rather than being in the form of a rigid solid body.
|
