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2017年3月15日,《Water Research》上刊发了中国地质大学生物地质与环境地质国家重点实验室朱健博士的论文——碳酸钙诱导模拟酸性矿山废水pH升高引起Fe(II)氧化活化氧气产生羟自由基(Production of hydroxyl radicals from oxygenation of simulated AMD due to CaCO3-induced pH increase)。
以造纸制浆废液中的松木碱木质素(AL)为原料,通过季铵化改性,制备了季铵化碱木质素(QAL).QAL与十二烷基苯磺酸钠(SDBS)通过静电作用形成QAL/SDBS复配物,将QAL/SDBS复配物在乙醇/水混合溶剂中进行自组装得到具有pH响应性的胶体球.采用X射线光电子能谱(XPS)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、元素分析和静态接触角研究了胶体球的形成过程和结构.研究结果表明,
In parts 1 and 2 of this series [Hanson, G. T., McAnaney, T. B., Park, E. S., Rendell, M. E. P., Yarbrough, D. K., Chu, S. Y., Xi, L. X., Boxer, S. G., Montrose, M. H., and Remington, S. J. (2002) Bio...
In the preceding paper [Hanson, G. T., McAnaney, T. B., Park, E. S., Rendell, M. E. P., Yarbrough, D. K., Chu, S., Xi, L., Boxer, S. G., Montrose, M. H., and Remington, S. J. (2002) Biochemistry 41, 1...
Novel dual emission, pH-sensitive variants of the green fluorescent protein (GFP) have been constructed and are suitable for ratiometric emission measurements in vivo. This new class of GFPs, termed d...
据《日刊工业新闻》2015年9月8日报道,日本产业技术总合研究所(产总研)的名誉研究员原田晃和鹤岛修夫主任研究员开发的海水氢离子浓度指数(pH)测定法,得到了国际标准化组织(ISO)的认可,并成为国际标准。该标准有可在海底蓄水层储存二氧化碳时,用于监测二氧化碳是否有泄漏及泄漏程度。
This essay is written for a particular group of Ph.D. students in oceanography, not the majority who are in the Ph.D. program to learn how to be researchers in research universities and research insti...
In 1896, Arrhenius provided the first roughly quantitative sense of the plausible magnitude of human-induced changes in the concentration of CO2 in the atmosphere. Since then, all chemists could be aw...
As the ocean absorbs atmospheric carbon dioxide released by the burning of fossil fuels, its chemistry is changing. The carbon dioxide, which is the primary greenhouse gas responsible for global warmi...
Experiments were conducted on calves divided into three groups, 6 animals in each, to determine the influence of the intake of non-acidified and acidified milk replacer on the level of acid-base homeo...
The regulation of pH is a critical homeostatic function of plant cells. In addition to acting as the primary cationic species responsible for energizing the plasma membrane, protons likely act as an i...
The total alkalinity–pH equation, which relates total alkalinity and pH for a given set of total concentrations of the acid–base systems that contribute to total alkalinity in a given water sample, ...
本文研究了不同浓度硅酸钠和对应p H对T.roseum孢子萌发和菌落生长的抑制;100mmol/L硅酸钠和对应p H12.60处理孢子3,6,9h后,损伤接种苹果对其病斑直径的影响;以及采用扫描电镜观察处理后孢子表面形态的变化。结果表明,不同浓度硅酸钠和对应p H处理均能有效抑制T.roseum孢子的萌发和菌落生长,但硅酸钠处理的效果要更好(p0.05),硅酸钠处理后的孢子其病斑直径明显低于对照(...

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