Which detector is used in nitrogen and phosphorus containing compound?

The thermionic detector, also called a nitrogen phosphorous detector (NPD), is selective towards nitrogen and phosphorous compounds.

Which of the following is the application of gas chromatography?

So, the correct answer is ‘Separation of urine components and blood components in forensic and research laboratories’

What is GC ECD?

What is GC-ECD? Gas Chromatography with an Electron Capture Detector, GC-ECD, is a technique commonly used in the pharmaceutical, forensic and environmental markets.

Which detector is used in gas chromatography?

Gas chromatography – flame ionization detectors (FID) The FID is the most common detector used in gas chromatography.

What is phosphorus and nitrogen?

Nitrogen and phosphorus are nutrients that are natural parts of aquatic ecosystems. Nitrogen is also the most abundant element in the air we breathe. Nitrogen and phosphorus support the growth of algae and aquatic plants, which provide food and habitat for fish, shellfish and smaller organisms that live in water.

What is TCD principle?

The TCD is based on the principle of thermal conductivity which depends upon the composition of the gas. The sample components in the carrier gas pass into the measuring channel. A second channel serves as a reference channel where only pure carrier gas flow.

Why is FID more sensitive than TCD?

If CO and CO2 are present in very low concentration, then TCD will not be able to give a proper signal. In that case, FID can be used, but CO and CO2 should be converted to Methane using a Methanizer. In the methanizer, CO and CO2 will be catalytically reduced to CH4 and FID will detect CO and CO2 as Methane.

Why is TCD preferred in analytical instrumentation?

The TCD is also used in the analysis of permanent and inorganic gases (for example argon, oxygen, nitrogen, carbon dioxide, carbon monoxide, sulfur dioxide) because it responds to all these substances unlike the FID, which cannot detect compounds which do not contain carbon-hydrogen bonds.

What are applications of chromatography?

Applications of Chromatography in the Chemical Industry Chromatography plays a vital role in the chemical industry for the testing of water samples for purity. The testing of air samples for their purity is also accomplished by chromatographic techniques in the chemical industry.

What is the role of detector in gas chromatography?

A chromatography detector is a device used in gas chromatography (GC) or liquid chromatography (LC) to detect components of the mixture being eluted off the chromatography column.

Why is nitrogen and phosphorus important in agriculture?

Nitrogen (N) and phosphorus (P) are essential nutrients for all living organisms. Soil, fertilizer, and manure are all sources of N and P to growing crops. Atmospheric deposition (the air we breathe is mostly N gas) and irrigation water are also N sources.

What is the role of N and P in agricultural pollution?

As a major form of non-point source agricultural pollution, continuous N and P input leads to their accumulation in the receiving water. Excessive N and P accumulation causes various problems such as algal blooms, water degradation, fish kills, and loss of biodiversity [33].