马铃薯实验样品制备流程

The potato samples used in the experiment were all obtained from a farmers' market in Changchun. These potatoes had been inspected and approved by national quality inspection authorities before being sold on the market. Therefore, sample preparation was necessary. Firstly, the purchased potatoes were washed clean with deionized water to eliminate any pollutants such as dust. Then, the potatoes were sliced into uniform pieces to ensure consistent quality and size for each sample. The weight of each potato sample was measured during preparation to ensure consistency. Finally, contamination treatment was applied by immersing the potato samples in a prepared Cr solution.