System for solving high salt inflow in solid-phase extraction and use method thereof

• Main Authors: LUO YUN, CHEN KEYAN, LUO WEICHENG, LIN ZHIJIE, LIN CHUNSHENG
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The system comprises a sample area, a solvent area, an SPE column, a collection area and an injection pump, a rotary switching valve and a three-way valve are arranged between the solvent area and the SPE column, the injection pump is communicated with the rotary switching valve, a sample loading needle is arranged between the sample area and the rotary switching valve, and the three-way valve is communicated with the sample loading needle. A LOOP ring communicated with the sample loading needle and the rotary switching valve is arranged between the sample loading needle and the rotary switching valve, the sample loading needle is arranged between the LOOP ring and the rotary switching valve, and a butt joint piece communicated with the three-way valve and the SPE column is arranged between the three-way valve and the SPE column; the rotary switching valve is provided with a channel A, a channel B and a channel C which can be switched and are not communicated with one another, the channel A is only communicat