College of Chemistry, Jilin University, Changchun, Jilin 130021, China.
College of Chemistry, Jilin University, Changchun, Jilin 130021, China; State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, Jilin 130012, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2023 May 15;293:122492. doi: 10.1016/j.saa.2023.122492. Epub 2023 Feb 15.
In recent years, hydrazine hydrate has been widely used in various fields as fuel and chemical raw materials, etc. However, hydrazine hydrate is also a potential threat to living body and natural environment. The effective method is urgently needed to detect hydrazine hydrate in our living environment. Secondly, as a precious metal, palladium has attracted more and more attention because of its excellent properties in industrial manufacturing and chemical catalysis. However, its potential danger is also slowly approaching, so it is necessary to find an excellent way to detect palladium, too. Herein, a fluorescent molecule, 4,4',4'',4'''-(1,4-phenylenebis(2H-1,2,3-triazole-2,4,5-triyl)) tetrabenzoic acid (NAT), was synthesized. Firstly, NAT has very high selectivity and sensitivity for determination of Pd, because Pd can coordinate well with carboxyl oxygen of NAT. The detection performance of Pd is that the linear range is from 0.06 to 4.50 μM and the detection limit is 16.4 nM. Furthermore, the chelate (NAT-Pd) can continue to be used for quantitative determination of hydrazine hydrate with a linear range of 0.05-6.00 μM and the detection limit is 19.1 nM. The interaction time of NAT-Pd and hydrazine hydrate is about 10 min. Of course, it also has good selectivity and strong anti-interference ability for many common metal ions, anions and amine like compounds. At last, the ability of NAT to quantitatively detect Pd and hydrazine hydrate in actual samples has also been verified and the results are very satisfactory.
近年来，水合肼作为燃料和化工原料等在各个领域得到了广泛的应用。然而，水合肼也是对生物体和自然环境的潜在威胁。因此，迫切需要在我们的生活环境中检测水合肼的有效方法。其次，钯作为一种贵金属，由于其在工业制造和化学催化中的优异性能而受到越来越多的关注。然而，其潜在的危险也在慢慢逼近，因此也有必要找到一种出色的方法来检测钯。在此，合成了一种荧光分子 4,4',4'',4'''-(1,4-亚苯基双(2H-1,2,3-三唑-2,4,5-三基))四苯甲酸（NAT）。首先，NAT 对 Pd 的测定具有很高的选择性和灵敏度，因为 Pd 可以与 NAT 的羧基氧很好地配位。Pd 的检测性能是线性范围为 0.06-4.50 μM，检测限为 16.4 nM。此外，螯合物（NAT-Pd）可继续用于定量测定水合肼，线性范围为 0.05-6.00 μM，检测限为 19.1 nM。NAT-Pd 和水合肼的相互作用时间约为 10 min。当然，它对许多常见的金属离子、阴离子和胺类化合物也具有良好的选择性和较强的抗干扰能力。最后，还验证了 NAT 定量检测实际样品中 Pd 和水合肼的能力，结果非常令人满意。
