2015/12/29 09:42
阅读:145
分享:
免费下载
方案摘要:
产品配置单:
百若仪器 YYF-50型 二氧化碳应力腐蚀试验机
型号: YYF-50-CO2
产地: 上海
品牌: 上海百若
面议
参考报价
联系电话
方案详情:
YYF-50型慢应变速率应力腐蚀试验机在上海交通大学机械与动力工程学院核动力工程材料腐蚀实验室、中科院合肥物质所、中科院上海应用物理所、中国原子能科学研究院、厦门大学、山东电力科学研究院、陕西煤业化工研究院、中科院金属研究所、国核北京技术研究院、沈阳航空航天大学、南京工业大学等单位成功应用。
下载本篇解决方案:
更多
NanoBrook产品应用-12-ZetaPALS
文献名: Structural, morphological and optical properties of Bi NPs obtained by laser ablation and their selective detection of L-cysteine 作者: Ramon Gabriel Teixeira Rosaa, Celso de Araujo Duartea , Wido Herwig Schreinera, Ney Pereira Mattoso Filhoa, Arandi Ginane Bezerra Jr.b, Andersson Barisonc, Fernanda Maria Marins Ocamposc a Departamento de Física, Universidade Federal do Paraná Centro Politécnico, CP 19044, 81531-990 Curitiba (PR), Brazil b Departamento Acadêmico de Física, Universidade Tecnológica Federal do Paraná, 80230-901 Curitiba (PR), Brazil c Departamento de Química, Universidade Federal do Paraná Centro Politécnico, CP 19081, 81531-990 Curitiba (PR), Brazil 摘要:In the present work we show the results of the investigation of the properties of bismuth nanoparticles (NPs) obtained by the laser ablation in water. The samples were characterized by various techniques: UV/vis spectroscopy, dynamic light scattering, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, nuclear magnetic resonance and zeta potential. The NPs were metallic and surface oxidated, exhibiting absorption peak at 257 nm due to the surface plasmon resonance. The interaction between the NPs and various amino acids was studied and revealed a selective sensibility to cysteine on a range of concentration from 80 to 720 μM, which we attribute to a dimerization of cysteine to cystine probably complexed to the nanoparticle surface by electrostatic interactions, leading to the modification of the NP absorption spectrum. 关键词:Bismuth; Nanoparticles; Laser ablation; Cysteine
2015/04/16
城市污水中TOC与COD的关系
TOC与COD的测定方法不同。测定COD是采用强氧化剂和加热回流的方法,只能将水中的有机物部分氧化(氧化率较低),并且测定时间较长,即使目前一些快速的
环保
2017/11/16
植物油中9种抗氧化剂的测定GB5009.32-2016
抗氧化剂是指能防止或延缓食品氧化,提高食品的稳定性和延长贮存期的食品添加剂。GB5009.32-2016《食品安全国家标准 食品中9种抗氧化剂的测定》中采用GPC和C18小柱对食品中9种抗氧化剂进行前处理,该方法回收率低,测试结果不稳定。安谱实验优化了实验方法,用CNW Poly-Sery PSD SPE小柱进行前处理,克服了国标方法的缺点,方法简单,9种抗氧化剂的回收率均在90%以上。
食品/农产品
2019/07/31
Milli-Q IX 纯水系统:溶出度检测纯水解决方案
纯水是制备溶出溶剂或生物相关溶液的重要成分,因此水质的好坏会影响结果。一旦水质选择不当,就会引入污染物,主要有以下几种类型。使用高质量纯水来制备溶出溶剂,是获取精确、可重现结果并满足监管要求的重要保障。
制药/生物制药
2020/07/29