Portable efficient magnetic solid phase extraction device and extraction method thereof

US10247642B2 · kind B2 · utility

Assignee

• Nanjing University · CN

Inventors

• Qing Zhou · Tangxia, CN
• Wei Wang · Jining City, CN
• Aimin Li · Nanjing, CN
• Qingqing Zhao · Zhuqiao, CN
• Minglu Wang · Nanjing, CN
• Rui Gao · Beijing, CN
• Xiaowen Ma · Beijing, CN
• Peng Shi · Beijing, CN
• Xun Chen · Tangxia, CN

Key dates

• Filing date: Jun 10, 2017
• Grant date: Apr 2, 2019
• Expiry date: Nov 7, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2001/1025
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device comprises a contact reaction chamber, a circulating water inlet, a clear water basin, a circulating pump, a circulating water outlet, a solid phase extractant collecting tank, a magnetic holder, an electromagnet, a solid-liquid separation area, a drain valve, a wall sprinkling water inlet, and a wall sprinkling pipe, wherein, the contact reaction chamber is in a conical shape, and utilizes hydraulic power to perform stir to ensure no dead corner exists during contact stir; the obconical solid-liquid separation area increases the action area between a magnetic solid phase extractant and the electromagnet; the solid phase extractant collecting tank is in a downwards protruding dish shape to prevent the solid phase extractant from losing.