Automated analyzing apparatus for measuring water quality with a cylinder-shaped syringe unit
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United States of America Patent
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Oct 6, 1998
Grant Date -
N/A
app pub date -
Dec 16, 1996
filing date -
Oct 9, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides an automated analyzing apparatus which comprises: a syringe unit for inhaling or transfering liquid such as sample, reagents and washing solution by moving the piston (12) by a certain distance; a built-in stirring bar (31) located within the syringe barrel (11); a driving unit for rotating the stirring bar (31); a driving means (13) for moving the piston (12) up and down; several connection paths (15a-15f) located in the lower part of the syringe barrel (11) or in the piston (12) where the sample, the reagents, the washing solution, and air can be provided or discharged; 2-way on/off valves (16a-16f) connected to each connection path (15a-15f); detecting means (3) positioned in the outer wall of the syringe barrel (11) perpendicular to the piston shaft (14); additional heating and cooling unit (4) for temperature control or sample digestion; control unit (6) for controlling the driving means (13), the detector (2) and valves (16a-16f) described above.
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