1.300mL was added to that sample extraction tube (about 10 drops) of sample extract.
2. Insert the sampled swab into the solution of the sample extraction tube and rotate about 10 times close to the inner wall of the test tube to dissolve the sample in the solution as much as possible.
3.Squeeze the swab head of the swab along the inner wall of the extraction tube to keep the liquid in the tube as much as possible, take out and discard the swab.
4.Cover the dripper.
3.Squeeze the swab head of the swab along the inner wall of the extraction tube to keep the liquid in the tube as much as possible, take out and discard the swab.
4.Cover the dripper.