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2.2 Operating Principle and Functional Description
2.2.1 Configuration of Flow Path
Sample rack
Wash tray
（Rinse port）
The configuration and the flow path of the ChromasterUltra Rs
6270 Autosampler is shown in Fig. 2-5 and 2-6. Sample vials are
placed in the form of a rack. The sample rack moves along the
transverse axis (X), and the arm moves along the longitudinal axis
(Y) and the vertical axis (Z), whereby the needle can move freely
among the sample vials, rinse port and injection port. To the needle,
a valve and a syringe are connected, so a sample can be aspirated
and dispensed.
After the needle is rinsed in the rinse port, a sample is aspirated
through the needle tip, and then the sample is led into the flow path
with the injection valve set on the injection side.
Wash the flow path with the wash pump after introducing sample.
Injection port
Figure 2-5 Autosampler Configuration
2 - 5
Syringe valve
Syringe
Wash pump
Injection valve
2.2.1
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