阀进样是柱色谱法中，通过使用进样阀完成进样的进样操作。 试样的计量管连接在输送流动相的进样阀的旁路上，通过阀的切换，使流动相通过计量管注入试样。
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自动气体进样阀 automatic gas sampling valve ; automatic gas sampling value
进样阀 injection valve ; sample valve ; introduction valve
西门子液态进样阀 SLIV
手动气体进样阀 manual gas sampling valve
双环管进样阀 two-loop sampling valve
自己主动气体进样阀 automatic gas sampling valve
进样阀隔片 sample valve septum
气动式进样阀 pneumatically operated sampling valve
气体进样阀 gas-sampling valve
除了需要常规自动进样器的六通切换阀，还设计了一个直接进样阀（DIV）用于自动进样器。
In addition to a six-way valve used in conventional autosamplers, a direct injection valve (DIV) was de- signed and used in the autosampler.
使用液相进样阀液态直接进样保证了试样的代表性。
The liquid-phase sample injection valve ensured the sampling reproducibility.
柱切换是指利用多通路切换阀改变进样阀与色谱柱、色谱柱与色谱柱、色谱柱与检测器之间的连接关系的技术。
The technique of column-switching could alter the connections between injection valve and column, column and column, column and detector.
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