Answer :
Final answer:
Photoionization detectors (Option C) have similarities with CGIs in limitations, considerations, and detection methods.
Explanation:
The Photoionization Detector (PID) (Option C) is comparable to Chemical Gas Sensors (CGIs) in terms of limitations, considerations, and detection methodology. Similar to CGIs, PIDs exhibit sensitivity to a broad spectrum of compounds and possess low detection limits.
Both technologies operate on the principle of ionization in gas-filled sensors, where the ionization effect influences current flow, enabling precise measurement. This shared functionality makes PIDs and CGIs valuable in detecting and quantifying various gases and volatile compounds, emphasizing their versatility in environmental monitoring, industrial safety, and other applications where the detection of diverse substances is crucial.
Final answer:
The (c) Photoionization Detector (PID) shares similar limitations, considerations, and detection methods with Chemical Ionization (CI) detectors, as both involve ionization processes for the detection of chemical compounds.
Explanation:
The question asks which monitor shares the same limitations, considerations, and detection method as Chemical Ionization (CI) detectors, commonly used in Gas Chromatography (GC). Among the options provided, photoionization detector (PID) bears similarities in considerations, limitations, and detection methods to CI detectors.
Both CI detectors and PIDs involve ionization processes, albeit with different approaches to ionization. PIDs utilize ultraviolet (UV) light to ionize chemical compounds in the air, making them detectable, similar to how CI detectors ionize samples with a reagent gas in the ion source.
This ionization-based detection method makes PIDs suitable for a wide range of volatile organic compounds (VOCs), much like CIs. Nevertheless, both are subject to limitations such as selectivity, sensitivity to changes in operational parameters, and the need for specific ionization energies for effective detection.
