closed-vessel acid digestion

https://doi.org/10.1351/goldbook.10233

Type of acid digestion performed in a closed vessel at elevated pressure.

Note: The increased rate of decomposition and retention of volatile trace elements is an advantage over open-vessel acid digestion.
Source:
PAC, 2016, 88, 517. (Glossary of terms used in extraction (IUPAC Recommendations 2016)) on page 540 [Terms] [Paper]