Citation: Nai Xing WANG. SIMULTANEOUS DETERMINATION OF NEODYMIUM AND PRASEODYMIUM BY ZERO-ORDER AND FOURTH-ORDER DFRIVATIVE SPECTROPHOTOMETRY[J]. Chinese Chemical Letters, ;1991, 2(1): 41-44. shu

SIMULTANEOUS DETERMINATION OF NEODYMIUM AND PRASEODYMIUM BY ZERO-ORDER AND FOURTH-ORDER DFRIVATIVE SPECTROPHOTOMETRY

Nai Xing WANG

Department of Applied Chemistry, Shandong University, Jinan 250100, Shandong, People's Repulic of China

Received Date: 29 April 1990

With derivative spectrophotometric method, the complexes of lanthanides with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) in the presence of octylphenol poly (ethyleneglycol) ether (TX-100) were studied. It is found that the maximum absorption of fourth-order derivative spectra of the neodymium complex by 4f electron transitions is at 579 (+) nm and 582 (-) nm with molar derivative absorptivities of 5.2×10³ l·mol^-1·cm^-1. The maximum absorption of the zero-order derivative spectra of the complexes for neodymium and praseodymium is at 580nm, the molar absorptivities are 1.47×10⁵ l·mol^-1·cm^-1 for Nd and 1.26×10⁵ l·mol^-1·cm^-1for Pr. The component ratio of the complex is Nd:5-Br-PADAP=1:4. Beer's law is obeyed in the range of 0-3.75μg of Nd and Pr in 25ml of solution. The method has been used for the simultaneous determination of Nd and Pr in four synthetic samples and the results obtained are satisfactory.
1. [1]
  Ying Xu , Yan Pu , Qiong Zhang , Xi Kang , Manzhou Zhu . Order-by-order control over the nonlinear optical properties of atomically precise nanoclusters. Chinese Journal of Structural Chemistry, 2025, 44(10): 100735-100735. doi: 10.1016/j.cjsc.2025.100735
2. [2]
  Liangliang Cai , Xinyi Zhang , Jiayi Lu , Juan Xiang , Qiang Sun , Andrew T.S. Wee . Disorder–order transition of two-dimensional molecular networks by selenium doping. Chinese Chemical Letters, 2026, 37(5): 111874-. doi: 10.1016/j.cclet.2025.111874
3. [3]
  Zhaohong Chen , Mengzhen Li , Jinfei Lan , Shengqian Hu , Xiaogang Chen . Organic ferroelastic enantiomers with high T_c and large dielectric switching ratio triggered by order-disorder and displacive phase transition. Chinese Chemical Letters, 2024, 35(10): 109548-. doi: 10.1016/j.cclet.2024.109548
4. [4]
  Zhuoer Cai , Yinan Zhang , Xiu-Ni Hua , Baiwang Sun . Phase transition arising from order-disorder motion in stable layered two-dimensional perovskite. Chinese Journal of Structural Chemistry, 2024, 43(11): 100426-100426. doi: 10.1016/j.cjsc.2024.100426
5. [5]
  Li Zhou , Fengyu Li , Zhou Lu , Yingwei Wang , Jun He . Two-dimensional atomic crystals for third-order nonlinear optical modulation. Chinese Journal of Structural Chemistry, 2026, 45(2): 100772-100772. doi: 10.1016/j.cjsc.2025.100772
6. [6]
  Ruiyan CHEN , Yanping HE , Jian ZHANG . Synthesis and third-order nonlinear optical property of Ti₄L₆ cage-based metal-organic framework. Chinese Journal of Inorganic Chemistry, 2025, 41(10): 2149-2156. doi: 10.11862/CJIC.20250177
7. [7]
  Tianyang Dong , Xingyuan Wen , Xingzhi Wu , Ying Jiang , Chong Wang , Ruizhi Liu , Junyi Li , Wenfa Zhou , Yinglin Song , Xiaofeng Shi , Rui Wen , Chunru Wang , Li Jiang , Chunli Bai . Ionic covalent organic frameworks enable laser-pulse-duration-dependent high third-order nonlinear optical responses. Chinese Journal of Structural Chemistry, 2025, 44(10): 100733-100733. doi: 10.1016/j.cjsc.2025.100733
8. [8]
  Gang Lang , Jing Feng , Bo Feng , Junlan Hu , Zhiling Ran , Zhiting Zhou , Zhenju Jiang , Yunxiang He , Junling Guo . Supramolecular phenolic network-engineered C–CeO₂ nanofibers for simultaneous determination of isoniazid and hydrazine in biological fluids. Chinese Chemical Letters, 2024, 35(6): 109113-. doi: 10.1016/j.cclet.2023.109113
9. [9]
  Dongshi Feng , Jiangdong Dai , Zhi Zhu , Pengwei Huo , Yongsheng Yan , Chunxiang Li . Molecularly imprinted electrochemical sensor arrays combined with machine learning for simultaneous determination of three neonicotinoid insecticides. Chinese Chemical Letters, 2026, 37(5): 111789-. doi: 10.1016/j.cclet.2025.111789
10. [10]
  Chen-Chang Cui , Shao-Qing Shi , Lu-Yao Wang , Feng Lin , Man-Su Tu , Wen-Juan Hao , Bo Jiang . Accessing polyarene-fused ten-membered lactams via oxidative N-heterocyclic carbene (NHC)-catalyzed high-order [7 + 3] annulation. Chinese Chemical Letters, 2025, 36(6): 110541-. doi: 10.1016/j.cclet.2024.110541
11. [11]
  You-Song Ding , Qing-Song Yang , Zhiping Zheng . Pentavalent praseodymium complexes culminated in the pursuit of high-valence lanthanide compounds. Chinese Journal of Structural Chemistry, 2025, 44(11): 100696-100696. doi: 10.1016/j.cjsc.2025.100696
12. [12]
  Xiaoqian Wei , Hanyu Gao , Tiantian Wang , Zijian Li , Yanru Geng , Guiping Zheng , Min Gyu Kim , Haeseong Jang , Xien Liu , Qing Qin . Neodymium-doped hollow Ir/IrO2 nanospheres with low geometric iridium density enable excellent acidic water oxidation performance. Chinese Journal of Structural Chemistry, 2025, 44(7): 100600-100600. doi: 10.1016/j.cjsc.2025.100600
13. [13]
  Juan Guo , Mingyuan Fang , Qingsong Liu , Xiao Ren , Yongqiang Qiao , Mingju Chao , Erjun Liang , Qilong Gao . Zero thermal expansion in Cs₂W₃O₁₀. Chinese Chemical Letters, 2024, 35(7): 108957-. doi: 10.1016/j.cclet.2023.108957
14. [14]
  Zhongsen Wang , Lijun Qiu , Yunhua Huang , Meng Zhang , Xi Cai , Fanyu Wang , Yang Lin , Yanbiao Shi , Xiao Liu . Alcohothermal synthesis of sulfidated zero-valent iron for enhanced Cr(Ⅵ) removal. Chinese Chemical Letters, 2024, 35(7): 109195-. doi: 10.1016/j.cclet.2023.109195
15. [15]
  Peipei CUI , Yawen ZHENG , Pan LI , Peiyan GUAN , Zhaohong QIAN . Praseodymium-organic framework with 4, 4′-oxybis(benzoic acid): Rare broken layer structure, antibacterial activity, and sensing for Cd²⁺ ions. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1641-1649. doi: 10.11862/CJIC.20250152
16. [16]
  Chao Ma , Cong Lin , Jian Li . MicroED as a powerful technique for the structure determination of complex porous materials. Chinese Journal of Structural Chemistry, 2024, 43(3): 100209-100209. doi: 10.1016/j.cjsc.2023.100209
17. [17]
  Yuhang Li , Yang Ling , Yanhang Ma . Application of three-dimensional electron diffraction in structure determination of zeolites. Chinese Journal of Structural Chemistry, 2024, 43(4): 100237-100237. doi: 10.1016/j.cjsc.2024.100237
18. [18]
  Si-Hua Liu , Jun-Hao Zhou , Jian-Ke Sun . Interconnecting zero-dimensional porous organic cages into sub-8 nm nanofilm for bio-inspired separation. Chinese Journal of Structural Chemistry, 2024, 43(7): 100312-100312. doi: 10.1016/j.cjsc.2024.100312
19. [19]
  Qiongqiong Wan , Zhourui Zhang , Mengmeng Zhao , Xianqin Ruan , Yanhong Hao , Jiajun Deng , Yunlang She , Minglei Yang , Yongxiang Song , Feng Jin , Ailin Wei , Sheng Zhong , Jie Zheng , Dong Xie , Suming Chen . Efficient diagnosis of benign and malignant pulmonary nodules based on Nano-zero-valent iron enhanced serum metabolic fingerprinting. Chinese Chemical Letters, 2025, 36(10): 110794-. doi: 10.1016/j.cclet.2024.110794
20. [20]
  Yuhang Zhang , Haiming Cai , Chuling Guo , Guining Lu , Zhi Dang , Xiao Liu , Falong Jia , Zhihui Ai , Chunhua Feng . Sustainable molecular oxygen activation for efficient treatment of heavy-metal complexes by fissured-phosphorylated zero-valent iron. Chinese Chemical Letters, 2026, 37(8): 112353-. doi: 10.1016/j.cclet.2025.112353

Get Citation

PDF

XML

Metrics

PDF Downloads(3)
Abstract views(1712)
HTML views(20)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return