The PrepElite SV fully automatic sample pretreatment platform is used for purifying and separating agricultural products containing trace and ultra trace amounts, as well as complex matrix samples such as oil and fat. It can perform pre concentration SPE solid-phase extraction concentration online, and each part can also be used separately. A sample pretreatment system with high automation and flexible configuration, suitable for agricultural product testing, food testing, environmental testing, and life science fields, to improve the sensitivity and accuracy of analysis and extend the service life of chromatographic columns.