Main TopicsWhich is the additional part in the SFC instrument compared to HPLC?
Table of Contents
- Which is the additional part in the SFC instrument compared to HPLC?
- Why is SFC better than GC and LC?
- Which one is mostly used as a mobile phase in SFC?
- What is the principle of detection used by SCD?
- Which is the most common general purpose detector?
- Which is the most sensitive detector in gas chromatography?
- How does a sulfur chemiluminescence Detector ( SCD ) work?
Which is the additional part in the SFC instrument compared to HPLC?
Satisfactory enantioselectivity was achieved for 89% of them. The primary advantage of SFC over HPLC is its speed, both in terms of separation time and solvent evaporation.
Why is SFC better than GC and LC?
Advantages of working with SFC The physical properties of supercritical fluids between liquids and gases enables the SFC technique to combine with the best aspects of HPLC and GC, as lower viscosity of supercritical fluids makes SFC a faster method than HPLC.
Which one is mostly used as a mobile phase in SFC?
Carbon dioxide Supercritical fluid chromatography (SFC) employs fluids that are raised above their critical pressure (Pc) and critical temperature (Tc) as mobile phases. Carbon dioxide, CO2, is the supercritical fluid most commonly used as a mobile phase for SFC. It is capable of solvating mostly nonpolar analytes.
What is the principle of detection used by SCD?
The principle of detection used by the SCD is as follows. The sulfur chemiluminescence detector (SCD) uses the chemiluminescence reaction caused by ozone oxidation.
Which is the most common general purpose detector?
General-purpose detectors can analyze a wide range of compounds, of which the flame ionization detector (FID) is the most common because it can analyze almost all organic compounds. In contrast, selective, high-sensitivity detectors are only capable of detecting specific types of compounds selectively and with high sensitivity.
Which is the most sensitive detector in gas chromatography?
Flame ionisation detector is also known as Katharometer. Explanation: Thermal conductivity detector is known as Katharometer. It uses heated filament as sensing element and it is placed in the emerging gas stream. 10. Thermionic emission detector used in gas chromatography is most sensitive to which of the following elements?
How does a sulfur chemiluminescence Detector ( SCD ) work?
The sulfur chemiluminescence detector (SCD) uses the chemiluminescence reaction caused by ozone oxidation. Sulfur compounds are converted to an X-S chemical species (mainly SO) that is capable of exhibiting chemiluminescence inside an extremely high temperature (around 1000 °C) oxidative-reductive furnace.
