4．选择性检测器（selective detector）只对某类溶质或含有该类溶质的柱流出物有响应，而对其他物质无响应或响应很小的检测器。常用的选择性检测器有PND、ECD、FPD等。
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介绍了一种含氧有机化合物选择性检测器的原理、装置及其应用。
The principle, development and applications of an oxygenatedselective response flame ionization detector (OFID) are described.
方法样品进样后通过VSOS装置进入两根不同极性的毛细管柱，经分离后到达两个不同选择性的检测器。
Method By the device of VSOS, the sample was injected into two difference polar capillary columns, and entered into two selected detectors after separated.
这是一个好包装单位，是经过验证的干比色法检测器，它提供了稳定性，灵敏度，选择性和硫反应的摩尔。
It's a well packaged unit that is based on the proven Dry colorimetry detector, which provides stability, sensitivity, selectivity and equimolar sulfur response.
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