By using WTiO with different mesopore structures as matrix, effects of characteristic features of mesoporous matrices on laser desorption/ionization process were investigated in detail.

• 实验结果发现，不同组分的介孔材料对分析物的电离能力表现出极大差异，材料对样品的电离能力与其紫外吸收趋势相一致，即紫外吸收越强，电离能力越强。