Automatic batch-type liquid-phase microextraction by sequential injection analysis using an external extraction container (e.g. pipette tip) connected to a multiposition rotary valve.
Source: PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 554 (https://doi.org/10.1515/pac-2015-0903)