Teacher:In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Teacher: Now, understand the problem? Solve this instance: Question: In some sample treatments, the solid phase extraction technique is used. Said technique:
Options: <1> It has the advantage that solvents are not required. <2> It is applied by contacting the solid sample with the stationary phase contained in a cartridge. <3> It does not require the application of pressure or vacuum. <4> It allows carrying out the preconcentration of large volume samples. <5> It is characterized by the high consumption of solvents.
Student:
4