Entity

Time filter

Source Type


Shan Y.,University of Jinan | Sun Y.,Zhejiang Province Institute of Multipurpose Utilization of Alunite | Sun N.,University of Jinan | Guan R.,University of Jinan | And 4 more authors.
Inorganic Chemistry Communications | Year: 2015

Abstract One diethylamine coumarin derivative with nitro substituted chalcone structure was synthesized via typical condensation reaction between 4-nitro-2-(hydroxyl)acetophenone with 7-(diethylamino)coumarinaldehyde in good yields. The investigation indicated that the compound exhibits quickly obvious UV-vis absorption, color change and fluorescence response to cyanide and copper ions in acetonitrile conditions. The bonding mechanism based on spectra change and in situ 1H NMR suggested that cyanide is bonded to 4-position of coumarin and 1:2 complexation between compound and copper ion forms. © 2015 Elsevier B.V. Source


Dai P.-Z.,Zhejiang Province Institute of Multipurpose Utilization of Alunite | Li Q.-C.,Zhejiang Province Institute of Multipurpose Utilization of Alunite | Pan Q.-C.,Zhejiang Province Institute of Multipurpose Utilization of Alunite | Jin B.,Zhejiang Province Institute of Multipurpose Utilization of Alunite
Xiandai Huagong/Modern Chemical Industry | Year: 2011

High-purity alumina is dissolved in HCl using a pressure vessel, and 15 trace elements in high-purity Alumina were determined by atomic emission spectrometry (ICP-AES). The results show that the method detection limit is 0.001-0.316 μg/mL, the recycling rate is from 93.5% to 105.8% and the RSD(%) is less than 4.59%. Source

Discover hidden collaborations