【大学化学】doi: 10.3866/PKU.DXHX202311104
尿酸是嘌呤在人体内代谢的最终产物,如果人们长期食用嘌呤含量高的食物或者不新鲜的各种肉类,使人体尿酸失衡,就容易导致血液中尿酸过高,引发一系列健康问题。本实验制备了一种新型Cd2In2S5纳米晶,将Cd2In2S5纳米晶与丝网印刷碳柔性电极结合,所得电极可用于尿酸检测。可通过检测尿酸含量来监测人体健康状况以及判断肉类新鲜程度。本实验创新性的将神奇的纳米材料走向市场,让中小学生、大学生、社会人群都能明白尿酸检测原理。实验所用材料便宜易得,操作简单,可实现尿酸的居家检测。
【大学化学】doi: 10.12461/PKU.DXHX202508101
作为我国高等化学教育发展的见证者与推动者,《大学化学》自创刊之日起,便肩负起引领教学改革、服务一线教师的重任。四十年风雨兼程,期刊在摸索中成长,离不开几代编委、作者和读者的共同努力。展望未来,我们初心不改,将继续脚踏实地,努力提高质量,让《大学化学》更好地成为化学教师们的良师益友,为建设教育强国贡献一份力量。在此,深切缅怀创刊先驱,并向所有支持者致以最诚挚的谢意!
Green synthesis of MIL-101/Au composite particles and their sensitivity to Raman detection of thiram
【无机化学学报】doi: 10.11862/CJIC.20240059
Metal-organic framework (MOF) MIL-101 and surface plasmon polariton (SPP) supported gold nanoparticles (Au NPs) hybrid systems were developed as a highly sensitive and reproducible surface-enhanced Raman scattering (SERS) detection platform, in which a green electrostatic self-assembly technology was adopted to construct the substrate. In an aqueous solution, the electronegativity of the particles can be used to prepare the composite substrate without any surface modifier. Due to the enrichment capacity of MIL-101 and the electromagnetic enhancement from Au NPs, the well-designed MIL-101/Au composites possessed ultrahigh sensitivity with the detection limit of Rhodamine 6G (R6G) as low as 10-10 mol·L-1. Meanwhile, the substrate exhibits high stability, excellent reproducibility, and recyclability. Additionally, the novel substrate can be explored for direct capture, and sensitively detect pesticide residues such as thiram.
【大学化学】doi: 10.3866/PKU.DXHX202312065
本文介绍了诺贝尔化学奖得主、德国化学家卡尔∙齐格勒(Karl Ziegler)的科研历程及贡献以纪念他逝世50周年。Ziegler对科学的热情、独特的思维和卓越的实验能力奠定了他的科学基础。他专注于自由基化合物、多元环化合物和有机金属化合物的研究,他与朱利奥∙纳塔共同发明命名的Ziegler-Natta催化剂对全球聚烯烃工业产生深远影响,造就了上千亿美元的市场。
