📝 Sample Preparation
SampleBefore testing,shouldreach room temperature (20-30°C) , Take FreshSampleWipe Off Mud, Cut into Pieces成<1cmSquare PiecesFilm.
Weigh 1.00±0.05 g homogenized sample into a 15 mL Centrifuge Tube.
Add 4 mLSample Extractant, vortex mixervortex1min, let stand1min, Obtainsample solution.
(得tosample solution后, shouldin/at5minComplete Spotting Within)