Question

Which of the following is not used as stationary liquid phase in a GLC colum
Options
O Polyglycols
O Silicone oils
O Paraffin oil
O Silica
Clear Response​

Answer 1

Solid-solid chromatography is not a stationary phase because solid-solid phase cannot provide any fluidity. Explanation: Liquid chromatography is a technique for separating ions that are dissolved in a solvent

The given options are all examples of adsorbents in Column adsorption except potassium permanganate. Some other adsorbents are starch and chromatographic purified siliceous earth.

so the answer is (silica)

Answer 2

Answer:

Silica is the correct option. Silica is not used as a stationary liquid phase in the GLC column.

Explanation:

Gas-liquid chromatography or GLC is a type of chromatography. It is applied to analyze pesticides, hydrocarbon contaminants, sterols, fat, and its components, etc.

Polyglycols, silicone oils, and paraffin are used as the stationary liquid phase in the GLC column. Whereas silica gel is used in the HLPC column.

• Non-polar stationary phases like silicone oils and paraffin are used to separate the already analyzed compounds in order of their increasing boiling point.

• Polar stationary phases like polyglycols or polyethylene glycols and silicone oils are used to separate polar compounds from non-polar compounds.  
• Silica is preferably used in HPLC due to its beneficial mechanical, chemical & chromatographic properties.