| 摘要 |
<p>The present invention is a sample preparation/injector device for use with flame or plasma spectrometers. It is a set (1) of electromechanical valves controlled by an electronic circuit which, by means of pressure differential, takes a number (5) of different solutions of samples and/or reagents and combines them into a single (7) homogeneous fluid flow, which leads to the entrance port of the spectrometer. The instrument is operated and programmed by means of a keyboard monitored by an alpha-numeric display. The set (1) of valves controls the fluid flow of sample and/or other solutions by means of flexible entrance (5) and exit (6) tubes, which converge into a single feeder tube (7) by means of an adaptor (8). The instrument is connected to an electrical outlet through a transformer.</p> |
