2011/11/04 10:54
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液相色谱仪配套产品AT-950色谱柱温箱
型号: AT-950
产地: 江苏
品牌: 南京科捷
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(食品行业-液相分析)LC600A
型号: LC 600A
产地: 江苏
品牌: 南京科捷
¥5万 - 10万
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科捷仪器GC5890血液中乙醇专用气相色谱仪
型号: KJ-GC5890
产地: 江苏
品牌: 南京科捷
¥3万 - 5万
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液相色谱仪配套产品DG系列在线脱气机
型号: DG系列
产地: 江苏
品牌: 南京科捷
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DK400A 自动顶空进样器
型号: DK400A
产地: 江苏
品牌: 南京科捷
¥5000 - 9999
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NHP-220氮气纯化器
型号: NHP-220
产地: 江苏
品牌: 南京科捷
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DK-400A顶空进样器
型号: DK-400A
产地: 江苏
品牌: 南京科捷
¥4万 - 5万
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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
连华科技 医疗污水检测方案
医疗污水包含了多种细菌、重金属、有机溶剂及酸碱溶液等生化有毒有害物质。如上述物质直接排放,将会对自然生态及人类生活环境造成危害。我国对医疗污水有清晰的排放标准。连华科技对于《医疗机构水污染物排放标准GB18466-2005》中所涉及的参数,多款便携及实验室仪器及耗材可满足检测需求
环保
2020/02/14
双相不锈钢的增强纳米压痕应用
Using Bruker’s Hysitron PI 88 SEM PicoIndenter equipped with tilt and rotation stages in conjunction with the QUANTAX EBSD system enables a more robust characterization of metallic materials by combining high resolution phase and grain orientation mapping capabilities with targeted nanomechanical property measurements. This combination could also be used to extend the scope of research related to other advanced textured, anisotropic, or multi-phase materials.
钢铁/金属
2021/09/02
布鲁克三维X射线显微镜在药物与医疗器械领域的应用
三维X射线显微镜是当前获取样品内部三维结构最有力的工具之一,而且作为无损的非破坏成像技术,它适用于各种形态的样品,无需包埋,镀层或切片等复杂的样品前处理。布鲁克skyscan系列三维X射线纤维成像系统,包含稳定易用的高分辨率成像设备,功能强大的软件套装,可为不同领域的应用提供完善的解决方案。 我们为大家带来桌面型三维X射线显微镜在药物与医疗器械领域的应用介绍。
医疗/卫生
2021/11/18