查询词典 Stilbene dye

The environmental black direct dye stuff without carcinogensis was prepared by 4,4'-diamino-dibenzidine-2-sulfonicacid,1-hydroxy-7-aminonaphthalene-3,6-dusuifonicacid,m-benzoic-diamine and aniline.

以4，4'-二氨基-二苯胺-2-磺酸代替苯胺，与1-羟基-7-氨基-3，6-二萘磺酸、间苯二胺、苯胺等合成无致癌作用的环保型黑色直接染料。

The color fastnesses of treated fabrics dyed with Direct Black GF could compare beauty with sulfur black or reactive black. The reflectivity curve fell greatly compared with untreated, and the darkening effect made it possible to get very full black colour with excellent wet fastness with relative small amount of the dye.

经溶胶-凝溶胶一凝胶技术在纺织上的应用与研究摘要胶整理后，直接黑GF的各项色牢度能与硫化黑、反应性黑相媲美，反射率曲线较处理前有较大幅度的降低，增深效果使得用较少的染料染得较浓的黑色成为可育旨。

The dyes were extracted from textiles composed of natural or chemical fibers by methanol under ultrasounication, and then eluted with gradient by acetonitrile and 5 mmol/L ammonium acetate from an RP-C18 column with two segments in effluents. The first effluents accommodated Acid Red 26, Direct Blue 6, Direct Black 38 and Direct Red 28 with negative ionization mode, while the second accommodated Basic Red 9, Basic Violet 14, Disperse Blue 1, Disperse Orange 11 and Disperse Yellow 3 with positive ionization mode. Thus the investigated compounds could be identified simultaneously with single-run analysis no matter which type of the fibre the sample was and no matter which category of the dye the analyte was.

用甲醇超声同时提取天然纤维和化学纤维上的染料，以5 mmol/L乙酸铵和乙腈为流动相在C18柱上于前段洗脱酸性红26、直接蓝6、直接黑38和直接红28（采用电喷雾质谱负离子模式检测），于后段洗脱碱性红9、碱性紫14、分散蓝1、分散橙11和分散黄3（采用电喷雾质谱正离子模式检测），实现了对不同种类纤维织品中分属4类性质不同染料的一次提取和一次分析检测。

The results show that direct sky blue dye can be efficiently decolorized in acid media.

结果表明：在pH酸性媒介中直接湖蓝能有效地光解脱色。

The effects of factors such as the initial dye concentration, the H2O2 concentration, the pH value and different inorganic anions on the effectiveness of decoloration of direct sky blue were studied.

研究染料初始浓度、H2O2、pH值、不同阴离子等因素对直接湖蓝染料的脱色效果影响。

UV-Vis spectra before and after the treatment were analyzed. It was showed that the decoloration of direct sky blue during the amplified sunlight with H2O2 photolysis treatment was due to the dye photolysis.

处理前后的UV-Vis谱图分析表明直接湖蓝在H2O2/强化日光光解处理中脱色是因为染料发生光解作用。

The absorption equilibrium capacities qe in the experimental dye concentration of 50 mg/g were in the range of direct dark brown M 14.3～16.0 mg/g, acid mordant brown RH 7.2～9.6 mg/g, reactive light yellow KD 3G 16.5～19.2 mg/g respectively.

上述温度范围内，当染料质量浓度为50 mg/ L时，活性嫩黄 KD- 3G、直接深棕 M和酸性媒介棕 RH的平衡吸附量分别为 1 6.5～ 1 9.2 mg/ g、1 4 。3～ 1 6.0 mg/ g、7.2～ 9.6 mg/g。

The dependence of discharge capacity on the reduction potential of the dye redox couple is compared for TiO2 and TiO2–SWCNT systems under equilibration conditions.

研究人员表示，&单壁碳纳米管接收和转移电子的能力凸显了它在电子转移过程中的中介作用。单壁碳纳米管的充放电特性将在提升光电转化方面起到重要的作用。&

The inhibition of SPG-Rg3 on the growth of MCF-7 cells was detected by MTT assay,IC50 was calculated to obtain the effective concentration; flow cytometry was used to observe the cell cycle of MCF-7 cells; AO/EB fluorescence double-dye technology was performed to observe the apoptosis of cells in morphology,immunocellularchemistry and RT-PCR were utilized to investigate the apoptosis of MCF-7 cells and its relationship with caspase-8 from protein level and molecule level.

采用MTT法观察SPG-Rg3对MCF-7细胞生长的抑制作用，并计算出IC50，依据IC50值确定SPG-Rg3的有效浓度；流式细胞术检测SPG-Rg3作用后MCF-7细胞周期的变化；AO/EB双染从形态学上观察SPG-Rg3对MCF-7细胞凋亡的作用；免疫细胞化学染色和RT-PCR技术分别从蛋白水平和分子水平上检测SPG-Rg3对MCF-7细胞的诱导凋亡作用及其与caspase-8基因的关系。

Control group was also set up.Then the AO/EB fluorescence double-dye technique,immunocytochemistry staining,Fluo-3 staining and Rhodamine 123 uptake assay approaches were adopted to observe the apoptotic rate,expression levels of Bcl-2 and Bax proteins,concentration of cytoplasmic free Ca2+ and mitochondrial transmembrane potential of NCI-H460 cells.

采用AO/EB荧光双染、免疫细胞化学染色、Rhodamine 123摄取法及Fluo-3/AM染色分别观察NCI-H460细胞的凋亡、Bcl-2及Bax蛋白的表达量、线粒体跨膜电位及细胞内游离钙离子浓度。

It also analyzes the feature and development of semi-finish grinding and finish grinding by roller press.

同时进行了辊压机半终粉磨和终粉磨系统的特点和发展分析。

When I got there, water was dripping slowly from the ceiling and forming a pool on the floor.

当我到那里的时候，水是慢慢地从天花板滴而且形成在地板上的一个池。