Name an Instrument That Can Be Used to Detect and Quantitate

Question

Examlex · Accepted Answer

The Answer is An instrument that can be used to detect and quantitate several metals in a single analysis based on emitted gamma rays is the Energy Dispersive X-ray Fluorescence (EDXRF) spectrometer.

EDXRF works on the principle of X-ray fluorescence, where a sample is irradiated with high-energy X-rays or gamma rays, causing the atoms within the sample to become excited. When the atoms return to their ground state, they emit X-ray photons, which have characteristic energies specific to the elements present in the sample.

The EDXRF instrument consists of an X-ray source, a detector, and a data processing unit. The X-ray source irradiates the sample, and the emitted X-rays from the sample are collected by the detector. The detector is capable of distinguishing between X-rays of different energies, which allows it to detect multiple elements simultaneously.

The data processing unit analyzes the energy spectrum of the detected X-rays to determine the presence and concentration of different metals in the sample. Each metal will produce a unique set of peaks in the spectrum, corresponding to the energies of the X-rays it emits. By comparing the energies and intensities of these peaks to known standards, the instrument can quantitatively determine the concentration of each metal in the sample.

EDXRF is a non-destructive analytical technique that can analyze solids, liquids, and powders. It is widely used in various fields, including environmental monitoring, material science, mining, and quality control in manufacturing, due to its ability to quickly and accurately measure multiple elements with minimal sample preparation.

Name an Instrument That Can Be Used to Detect and Quantitate

Definitions: