功能

• A mini-cartridge column using a column-type liquid-solid extraction method.
• Preprocessing (Concentration, purification, and extraction) of samples can be reduced and labor-saving.
• It is suitable for pretreatment of water samples with pH between 2.5 and 7.5.
• A hydrophilic PTFE type membrane filter with a pore size of 0.50 μm is built in, and particle removal filtration can be performed simultaneously with sample pretreatment.