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Wu X.,Guangzhou University | Xiao H.H.,Guangzhou University | Wang J.J.,Yiwu Entry exit Inspection and Quarantine Bureau | Xie X.X.,Guangzhou University | And 2 more authors.
Applied Mechanics and Materials | Year: 2014

A novel series of brush-like amphiphilic statistical tripolymers were designed and prepared by polymerization of amphiphilic macromonomer 2-(acrylamido)-dodecane sulfonic acid (AMC12S, 10 to 90 mol %), with hindrance units sodium p-styrenesulfonate (SSS, 0 to 5 mol %), and 2-(acrylamido)- 2-methylpro-panesulfonic acid (AMPS). The self-assembly behaviors of these tripolymers were investigated using steady-state fluorescence, and the increase of amphiphilic units results in a decrease of microdomain polarity and polymer concentrations for assembly, while the increase of hindrance units leads little change of microdomain polarity. © (2014) Trans Tech Publications, Switzerland. Source


Xu F.,Yiwu Entry exit Inspection and Quarantine Bureau | Xu F.,Yiwu Academy of Science and Technology for Inspection and Quarantine | Zhao M.,Yiwu Academy of Science and Technology for Inspection and Quarantine | Hong D.,Yiwu Academy of Science and Technology for Inspection and Quarantine | And 3 more authors.
Analytical Methods | Year: 2013

Because of nickel's high corrosion resistance and heat resistance, it is widely used in alloy products. It has been shown that skin contact with these materials on a daily basis may cause nickel allergy. The objective of this work is to investigate the effects of nickel release in alloy products. The results show that the amount of nickel release was significantly affected by metal composition and interestingly, can be effectively restrained by the addition of noble metals. © 2013 The Royal Society of Chemistry. Source


Jiang S.,Yiwu Entry exit Inspection and Quarantine Bureau | Xu F.,Yiwu Entry exit Inspection and Quarantine Bureau | Hong D.,Yiwu Entry exit Inspection and Quarantine Bureau | Xiang W.,Yiwu Entry exit Inspection and Quarantine Bureau | Zhang J.,Yiwu Entry exit Inspection and Quarantine Bureau
Chemistry Bulletin / Huaxue Tongbao | Year: 2014

The content of tin in the toy's material was determined by inductively coupled plasma mass spectrometry (ICP-MS). The main sources leading the uncertainty for determination were discussed, including sample weight, volume, standard solution and sample solution. The combined standard uncertainty and expanded uncertainty were given in the results. Source

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