2018/05/16 14:09
阅读:192
分享:方案摘要:
产品配置单:
色谱仪/石油液化气分析专用气相色谱仪
型号: 南京科捷 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:
粗苯是焦化企业的主要化产品之一,粗苯的回收率直接影响企业的效应。洗苯塔后煤气含苯族烃的多少是决定粗苯回收率的主要因素,一般焦化企业都将塔后煤气中的苯族烃含量控制在3-5g/m3,这一指标对大型焦化厂的粗苯回收是经济合理的。因此测定塔后煤气粗苯含量很有必要。测定煤气中的粗苯含量一般用活性炭吸附法,此法从取样到蒸馏要2h以上,并且从吸收管的吸收率测定到吸收管补正值测定以及吸收管气密性的检查等都要做大量的工作,给测定带来了一定的难度,费时费力。为此探讨用气相色谱测定煤气中的粗苯。
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
EYELA MCR流动化学法制备长链脂肪酯
1、恒温槽采用铝块加热的方式,50~200℃范围内进行高精度温度调节。 2、反应柱分为内径3·5·10mmX长度50·100mm的六个种类,材质分为不锈钢材质和玻璃材质,玻璃反应柱适用于酸性样品的反应。 3、反应柱在恒温槽内的固定操作十分简单,只需一个拉杆动作即可完成安装。 4、样品导入端分为液相反应用和气液反应用2个种类(选购) 5、氢气、氧气、二氧化碳气的气体反应用大流量控制单元也可配备(选购)
石油/化工
2018/11/16
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
固定污染源废气苯系物的测定—气袋采样/直接进样气相色谱法
本文参考生态环境部发布的标准《HJ 1261- 2022 固定污染源废气 苯系物的测定 气袋采样/直接进样-气相色谱法》,使用磐诺气相色谱仪,进行苯系物含量测定。
环保
2022/10/31