Question

Which of the following is not a component of sample injection port in gas chromatogram
Options
O chart recorder
micro syringe
N
rubber septum
heated metal block​

Answer 1

Answer:

micro syringe is answered

Answer 2

Answer:

The correct answer is chart recorder.

From the given options, the thing which is not a part of Sample injection port in gas chromatogram is Chart recorder.

Explanation:

Micro syringe :

• In contrast to liquid chromatography, gas chromatography involves the analysis of both liquid and gaseous materials.
• Accurate measurement and transfer of injected volumes become more important as a result.
• When injecting a gas sample into a GC machine, a micro syringe is utilised, or injected with a gas-tight syringe.
• A tiny syringe injects a sample into a Flash vaporiser through a rubber septum.
• The temperature of the sample port is typically around 50°C higher than the boiling point of the sample mixture's lowest boiling component.
• Injection volumes are usually between 0.5 and 5ul. Syringe injections have an accuracy of about +/-1 percent. In capillary gas chromatography, the split injection technique is often used.

Rubber septum :

• Rubber septa are used to seal vials that are used to store samples in a laboratory.
• Rubber septa are used to seal vials that are used to store samples in a laboratory. Typically, these vials are used in conjunction with a gas or liquid chromatograph.
• On top of a gas chromatograph, the injection port is sealed.
• The purpose of this injection port septa is to keep the entire chromatographic column sealed.

Heated metal block :

• A somewhat big, thermostatically regulated metal heater block keeps the injector warm.
• The sample is instantaneously vaporised, and a pressurised, inert carrier gas sweeps the gaseous sample, solvent, analyte, and all, onto the GC column, which is continuously flowing from a gas regulator and through the injector and into the GC column of the system.

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