| 摘要 |
<p>In known chemical analyzers, in order to apply sample fluid to two different types of test slides, for example potentiometric and colorimetric slides which have sample deposit zones in different locations, more than one sample dispensing station is required. Other problems associated with sample dispensing include perfusion of the sample fluid as it is dispensed from the sample dispenser, for example a pipette tip. Described herein is a chemical analyzer having slide positioning apparatus which overcomes these problems, and method for properly aligning a test slide (14, 18) relative to a sample dispenser (32) of the analyzer. The slide positioning apparatus is capable of moving the slide in three different planes of movement for effecting full alignment of the slide (14, 18) with respect to the dispenser (32) to control the application of sample fluid thereto. The positioning apparatus includes a platform (40) which supports the slide (14, 18), a slide transfer mechanism (46) for positioning the slide (14, 18) on the platform (40) in a first direction (Y), and a carrier assembly (60) for moving the platform (40) and the slide (14, 18) carried thereon in second and third directions (X, Z) which extend perpendicular to each other and to the first direction (Y) in order to position the slide (14, 18) relative to the sample dispenser (32).</p> |
