科学仪器在科学研究和实验教学中发挥着重要作用，推动着科技创新。本文将青蒿素提取与鉴定实验加以改进，作为本硕贯通实验项目。实验过程中引入并应用现代仪器原理提取黄花蒿中的有效成分，测定青蒿素含量，纯化青蒿素，分析青蒿素结构。将天然产品的提取、分析、分离和鉴定结合起来，提高了学生学习兴趣，学习了天然产物的前沿实验技术，培养了创新意识，训练了科研思维。

在为强基计划本科生开展的仪器分析实验课程中，利用交互式电子课件作为实验课程的课前学习材料，将线上学习与线下学习相结合，有针对性地为学生开展高阶学习内容，激发了学生学习的积极性，提高了学生的实验技能，培养了学生的科研创新思维，为本硕贯通仪器分析实验课程提供了建设数字化课程资源的新途径。

A simple two-step hydrothermal method synthesized four different CdS/Fe₃O₄ photocatalysts with varying ratios of mass of CdS to Fe₃O₄. The composition and morphology of the prepared samples were investigated using X-ray diffraction (XRD), Raman spectrum, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Solid UV reflectance spectra testing found that CdS/Fe₃O₄ nanocomposites had good light absorption throughout the spectral range, promoting their photocatalytic properties. Under visible light irradiation, CdS/Fe₃O₄ (2:5) with a mass ratio of 2:5 exhibited excellent photocatalytic performance, with a degradation rate of 98.8% for rhodamine B. Furthermore, after five cycles of photocatalytic degradation reaction, the rhodamine B degradation rate remained at 96.2%, indicating that the photocatalysts have good photocatalytic stability.

Two novel Cd-based metal-organic frameworks (Cd-MOFs), {[Cd₂(DCODBC)(phen)₂]·3H₂O}_n (1) and {[Cd₅(DCOTBC)₅(H₂O)₈]·2H₂O}_n (2), were synthesized by solvothermal method, where H₄DCODBC=4,4′-oxydibenzene-1,2-dicarboxylic acid, phen=1,10-phenanthroline, and H₅DCOTBC=4-[(3,4-dicarboxyphenyl)oxy]benzene-1,2,3-tricarboxylic acid. The structures of compounds 1 and 2 were determined using single-crystal X-ray diffraction, powder X-ray diffraction, infrared spectroscopy, and thermogravimetric analysis. 1 is a 2D planar structure, and 2 is a 3D grid structure. The DCODBC^4- ligand adopts the μ₆-к²∶к²∶к²∶к²∶к¹∶к¹ mode in 1 and the DCOTBC^5- ligand adopts the μ₉-к²∶к²∶к¹∶к¹∶к¹∶к¹∶к¹∶к¹∶к¹ mode in 2. To evaluate their optical performance, the photoluminescent properties of 1 and 2 were analyzed. 1 responded well to nitrobenzene [NB, detection limit (LOD)=0.043 8 μmol·L^-1], while 2 responded well to 2,4,6-trinitrophenol (TNP, LOD=0.257 μmol·L^-1). Interestingly, 1 and 2 responded well to tetracycline (TC) and fluazinam (FLU); the LODs were all in the μmol·L^-1 range. The fluorescence quenching mechanisms of 1 and 2 were discussed. To further evaluate the detection capability of 1 and 2 for FLU in real samples, we conducted a spike recovery experiment using apple peels as the matrix. The recovery rate for 1 ranged from 98.78% to 99.75%, and that for 2 ranged from 98.76% to 99.27%.