Get Microwave Enhanced Sample Preparation: General, Analytical, And ...

A representative sub-sample of solid sample or measured volume of aqueous sample is digested with concentrated nitric acid or alternatively a mixture of concentrated nitric, hydrochloric acids and hydrogen peroxide at high temperature and pressure in a contained vessel as a means of effectively extracting metals from ...

The major sample preparation techniques that are amenable to automation are solid-phase extraction, LC, dialysis, microwave sample preparation, flow injection analysis, and segmented flow analysis.

Microwave digestion is an extremely useful sample preparation method in trace metal analysis. The process uses microwaves to heat up a sample that is combined with concentrated acid, breaking down solids into solutions for analysis.

Microwave digestion is a well-established preparation technique for converting solid samples into solutions suitable for analysis by ICP-AES, ICP-MS, atomic absorption spectrophotometry or polarography.

Sample digestion is one method of sample preparation. Instrumental analysis usually requires a pre-treated sample in which the analytes are present in dissolved and measurable form. This applies to both solid and many liquid samples. The aim of sample digestion is to produce the required analytic sample in the lab.

The solid sample is chemically digested using a liquid reagent (usually a mineral acid) by microwave heating in a closed container. By heating in a closed container, temperatures in the range of 200-260 °C (far in excess of the boiling points of the acids) can be generated, which accelerates the digestion process.

In subject area: Chemistry. Microwave digestion is a process in which microwave radiation is used to heat a substance and decompose it, allowing for the analysis of elements in various sample matrices. From: Spectrochimica Acta Part B: Atomic Spectroscopy, 2019.

Conventional sample preparation techniques including SPE, solid phase extraction; LLE, liquid–liquid extraction; PP, protein precipitation and many modern approaches (RAM, restricted access material; MIP, molecularly imprinted polymers; SPME, solid phase microextraction; LLME, liquid–liquid microextraction; MEPS, ...