| 摘要 |
An article of laboratory glassware for directing the flow of chemical materials is described. The article includes a glass manifold having a plurality of input ports and at least one output port, and a plurality of stopcocks. Each stopcock has an inlet port and an outlet port connected by a passageway through the plug. Each of the stopcock output ports is connected to one of the manifold input ports, and each of the stopcock input ports is connected with one end of a hollow glass tube, and the other end of the hollow glass tube is connected to a female ground glass joint. The output ports of the manifold are terminated to a male ground glass joint. Each plug is rotated by an electrical motor or a servo, and sensed by a sensor. The rotation of each rotating plug is controlled by a computer.
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