样品溶液溶解时，先如入少量的（5—10mL）稀释剂，超声溶解后再定容。

When the sample solution is dissolved, first add a small amount (5-10mL) of diluent, dissolve it ultrasonically, and then dilute to volume. <br><br><br>After the system is equilibrated, at least one injection of the blank solution should be injected without interfering peaks; <br><br>after the system adaptability meets the requirements, the sample solution is injected according to the injection sequence and the chromatogram is recorded.

When dissolving the sample solution, first add a small amount of (5-10ml) diluent, dissolve it by ultrasound, and then fix the volume.<br>After the system is balanced, inject at least one needle of blank solution without interference peak;<br>After the system adaptability meets the requirements, inject the sample solution with reference to the injection sequence and record the chromatogram.

When the solution is dissolved, add a small amount of diluent (5-10 ml) first, and then dissolve it by ultrasonic and then adjust the volume. After the system is balanced, inject at least one needle of blank solution without interference peak; After the adaptability of the system meets the requirements, enter the sample solution with reference to the injection sequence and record the chromatogram.