Comparison of ASE with other solid-liquid extraction leaching techniques

Comparison of ASE with other solid-liquid extraction (leaching) techniques 

Accelerated solvent extraction, like many other recent techniques, has frequently been compared with well-established, other solid-liquid extraction techniques in order to assess its potential in various fields and identify its advantages and disadvantages relative to existing alternatives. 

It has for some time been a common practice to compare new extraction techniques with Soxhlet extraction, and ASE has been no exception in this respect. The ASE technique has many advantages over Soxhlet extraction, especially prominent among which are the following reduced operating times and consumption of organic solvents, and partial automatability. In many cases, ASE provides results similar to (e.g. in the extraction of organophosphorus pesticides, organic matter, hydrocarbons and PAHs from soil 

High-pressure, high-temperature solvent extraction 

The ASE technique has also been compared — to a lesser extent, however — with ultrasound-assisted extraction (USE) and found to provide better [49,59,81] or at least similar results [31,85,109] in most cases. The advantages of ASE over USE are similar to those of the former in relation to Soxhlet extraction, i.e. increased throughput, automatability and decreased solvent consumption. While ASE extraction times are also short relative to USE, this is not the most salient advantage as USE times are also fairly short. The reduced consumption of solvents is indeed a major advantage, particularly in cases such as the extraction of organic pollutants from marine particulate matter, where 

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