Answer: The following statement is NOT a requirement for GC detectors with a wide temperature range (up to at least 400°C):
"Any GC detector should be able to work also with HPLC linear response over several orders of magnitude."
Step-by-step explanation:
This is because High-Performance Liquid Chromatography (HPLC) and Gas Chromatography (GC) are two different analytical techniques with distinct detectors that are not directly interchangeable. While both techniques are used for separation and analysis of chemical compounds, their detectors are designed to be compatible with their respective separation methods and are not typically cross-compatible.
The other three requirements mentioned are indeed essential for GC detectors with a wide temperature range:
Wide Temperature Range: The detector should be capable of operating at high temperatures, often up to 400°C, to accommodate the analysis of various compounds that may have different boiling points.
Good Sensitivity, Stability, and Reproducibility: These characteristics are crucial for obtaining reliable and accurate analytical results. A detector with good sensitivity can detect low concentrations of analytes, while stability and reproducibility ensure consistent and reliable data.
Short Response Times Independent of Flow Rate: A rapid response time is important for real-time detection of analytes as they elute from the chromatographic column. The detector's response time should not be significantly affected by changes in the flow rate of the carrier gas.
Overall, GC detectors with a wide temperature range should meet the above requirements to ensure accurate and efficient analysis of various compounds in the gas phase.