2019/11/12 10:01
阅读:164
分享:方案摘要:
产品配置单:
科捷通用气相/GC5890N气相色谱仪
型号: GC 5890N
产地: 江苏
品牌: 南京科捷
¥3万 - 5万
参考报价
联系电话
方案详情:
液化石油气组分中C2以下组分、炔烃组分影响石油气的存储和输送,C5以上组分与其利用率相关,通过其组分还可以换算出平均分子量、密度、蒸汽压等,组分测定的准确性具有重要意义。目前测定液化石油气组成的主要方法有ASTMD2163-2007液化石油气组成的气相色谱测定方法;ISO7941-1988,GB10410-2008,SH/T0230-1992和SN/T2255-2009等
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
使用Millipak® Final Fill过滤器及吹扫步骤达到最大化产品收率
Millipak® Final Fill过滤器的特殊层叠式设计可最大程度地减少残留体积,从而增加产品回收。过滤器吹扫亦可有效降低折叠膜和层叠式过滤器使用后的残留量。
生物产业
2020/04/30
qTOWER3G上进行新型冠状病毒SARS-COV-2的qPCR检测
市面上有众多的新冠病毒qPCR检测试剂盒,本应用方案采用韩国Seegene公司的AllplexTM 2019-nCoV检测试剂盒在耶拿荧光定量PCR仪 qTOWER³G上进行样品检测,获得符合预期的结果。
生物产业
2020/10/20