Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece.
Molecules. 2020 Aug 12;25(16):3673. doi: 10.3390/molecules25163673.
Even though instrumental advancements are constantly being made in analytical chemistry, sample preparation is still considered the bottleneck of analytical methods. To this end, researchers are developing new sorbent materials to improve and replace existing ones, with the ultimate goal to improve current methods and make them more efficient and effective. A few years ago, an alternative trend was started toward sample preparation: the use of sponge or sponge-like materials. These materials possess favorable characteristics, such as negligible weight, open-hole structure, high surface area, and variable surface chemistry. Although their use seemed promising, this trend soon reversed, due to either the increasing use of nanomaterials in sample preparation or the limited scope of the first materials. Currently, with the development of new materials, such as melamine sponges, along with the advancement in nanotechnology, this topic was revived, and various functionalizations were carried out on such materials. The new materials are used as sorbents in sample preparation in analytical chemistry. This review explores the development of such materials, from the past to the present and into the future, as well as their use in analytical chemistry.
尽管分析化学中的仪器不断进步，但样品制备仍然被认为是分析方法的瓶颈。为此，研究人员正在开发新的吸附剂材料以改进和替代现有材料，最终目标是改进现有方法，使其更高效、更有效。几年前，样品制备开始出现一种替代趋势：使用海绵或类似海绵的材料。这些材料具有重量轻、开孔结构、高表面积和可变表面化学等优点。尽管它们的应用前景似乎很有希望，但由于纳米材料在样品制备中的应用越来越多，或者最初材料的应用范围有限，这种趋势很快就发生了逆转。目前，随着三聚氰胺海绵等新材料的发展以及纳米技术的进步，这个话题又重新兴起，对这些材料进行了各种功能化处理。这些新材料被用作分析化学中样品制备的吸附剂。本综述探讨了这些材料从过去到现在再到未来的发展，以及它们在分析化学中的应用。
