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A Highly Sensitive Kinetic Spectrophotometric System and Its Analytical Potential for Chromatographic Detection of Metal Ions
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作者 Xi Rong huaNG Wen Juan ZhanG +1 位作者 shu hua han Gut Ying XU(College of Chemistry, Shandong University, Jinan 250100) 《Chinese Chemical Letters》 SCIE CAS CSCD 1999年第1期51-54,共4页
Based on the inhibitory effect of metal ions on the decolourization reaction of a dye taking place in a mixed micellar medium, a differential rate method was developed for the detection of metal ions. The present kine... Based on the inhibitory effect of metal ions on the decolourization reaction of a dye taking place in a mixed micellar medium, a differential rate method was developed for the detection of metal ions. The present kinetic spectrophotometric system has several advantages due to introduction of the mixed micelles. 展开更多
关键词 mixed micellar media decolourization reaction bromopyrogallol red metal ions INHIBITOR SPECTROPHOTOMETRY method development
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Interaction between Cationic Surfactants and Bromopyrogallol Red as well as Its Application for the Sensitive and Selective Determination of Mo in Mo/W Binary Mixtures
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作者 Xi Rong huaNG shu hua han +2 位作者 Wen Juan ZhanG Yong Quan YIN Gui Ying XU (Department of Chemistry, Shandong University, Jinan 250100) 《Chinese Chemical Letters》 SCIE CAS CSCD 1997年第6期523-526,共4页
Prior to formation of the micelles of cationic surfactant (CSF), bromopyrogallol red (BPR) could exist in the forms of both monomer and oligomer After that, however, only BPR monomer existed. Nonionic surfactant OP-10... Prior to formation of the micelles of cationic surfactant (CSF), bromopyrogallol red (BPR) could exist in the forms of both monomer and oligomer After that, however, only BPR monomer existed. Nonionic surfactant OP-10 favoured the oligomerization of BPR monomer. The mixed micellar media prepared by mixing CSF and OP-10 in an appropriate ratio could be used for the sensitive and selective determination of Mo in Mo/W binary mixtures. 展开更多
关键词 well MO Interaction between Cationic Surfactants and Bromopyrogallol Red as well as Its Application for the Sensitive and Selective Determination of Mo in Mo/W Binary Mixtures
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Study on Isoelectric Point of Magnesium Aluminum Hydroxide
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作者 shu hua han De Jun SUN +2 位作者 Wan Guo HOU Chun Guang ZhanG Guo Ting WANG(Institute of Colloid and Interface Chemistry,Shandong University, Jinan, 250100) 《Chinese Chemical Letters》 SCIE CAS CSCD 1997年第1期87-90,共4页
Yoon's equation which predicted point of zero charge of complex oxide should predict the zero point of net charge (ZPNC) of mixture of variable and permanent charge rather than the point of zero charge (PZC) of th... Yoon's equation which predicted point of zero charge of complex oxide should predict the zero point of net charge (ZPNC) of mixture of variable and permanent charge rather than the point of zero charge (PZC) of the variable charge component. The calculated values with modified Yoon's equation agreed with the experimental values. 展开更多
关键词 JUN Study on Isoelectric Point of Magnesium Aluminum Hydroxide IEP
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Coordination Structure of Aluminum in Magnesium Aluminum Hydroxide Studied by (27)Al NMR
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作者 shu hua han Wan Guo HOU +1 位作者 Wen Xiu DANG Jun XU 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第6期605-608,共4页
The coordination structure of aluminum in magnesium aluminum hydroxide was studied by 27Al NMR. The result showed that tetrahedral aluminum (AlIV) existed in magnesium aluminum hydroxide, and the contents of AlIV inc... The coordination structure of aluminum in magnesium aluminum hydroxide was studied by 27Al NMR. The result showed that tetrahedral aluminum (AlIV) existed in magnesium aluminum hydroxide, and the contents of AlIV increased with the increase of the ratio of Al/Mg and with the peptizing temperature. AlIV originated from the so-called Al13 polymer with the structure of one Al tetrahedron surrounded by twelve Al octahedrons. 展开更多
关键词 Coordination structure magnesium aluminum hydroxide 27Al NMR.
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