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已读[817] 发布: 2013/05/24 18:14:19
Azom.com Samples can be investigated for residual monomers, intermediates, degradants, contaminants or additives . Electron impact ionization (EI) ... TOF mass analyzers. This article discusses the method of identifying components of polymer extracts using ... and more »
已读[29] 发布: 2013/05/23 21:07:26
该项目主要包括原料预处理、前乙腈、醚化、氧化脱氢、后乙腈、催化剂、储运灌区、水处理及其他公用工程等工段。DCS系统需要与现场8套装车仪、流量计、可燃气体报警、...
已读[59] 发布: 2013/05/23 21:06:57
该项目将针对我国化工行业含氰尾气的排放特征,通过催化燃烧、电化学浓缩/转化/回收、电芬顿净化等技术,实现含丙烯腈、氢腈酸、乙腈等行业废气的有效治理,攻克关键性...
已读[28] 发布: 2013/05/23 21:05:24
7thSpace Interactive (press release) Optimal chromatographic parameters were obtained using Halo RP-Amide column and an isocratic mobile phase composed of acetonitrile and 1mM phosphate buffer pH 3.0 (52:48; V/V) at a flow of 1.0 ml/min and 3 mul injection volume. Quantification was ...
已读[42] 发布: 2013/05/23 21:04:00
AZoNano.com Spectra of peptides after elution with 30% acetonitrile . MagSi C18 beads show 23 annotated proteins (blue) as compared to the two reference beads, 7 (red) and 11 (green) respectively. MagSi proteomics products efficiently bind and elute even tiny ... and more »
已读[71] 发布: 2013/05/23 21:03:32
nanotechweb.org Test vapours included toluene, acetic acid, ethanol, methanol, acetonitrile , water, ammonia and nitrogen dioxide. After H2SO4 doping, nanoPANI–Au samples showed a higher response to ammonia vapor in low concentration (10.8 ppm) at room temperature.
已读[26] 发布: 2013/05/20 17:15:18
阿里巴巴 方法采用高效液相色谱法,以shim-pakclc-ODS(4.6mm×150mm,5μm)为色谱柱,以 乙腈 -0.025mol/L磷酸水(20∶80)为流动相,流速1mL/min,检测波长277nm。结果连翘苷进样量在0.12~0.5μg范围内线性关系良好,平均回收率为97.1 ... and more »
已读[27] 发布: 2013/05/20 17:15:13
阿里巴巴 色谱柱: ACQUITY UPC2HSS C18, 3.0 x 100 mm,1.8 μm 流动相A: CO2 流动相B: 乙腈 洗涤溶剂: 70:30甲醇/异丙醇 分离方法: 从1% B开始,洗脱0.5分钟,然后在2.5分钟内梯度提高至15% B,洗脱0.5分钟,然后在0.1分钟内返 ...
已读[26] 发布: 2013/05/20 17:15:02
7thSpace Interactive (press release) Optimal chromatographic parameters were obtained using Halo RP-Amide column and an isocratic mobile phase composed of acetonitrile and 1mM phosphate buffer pH 3.0 (52:48; V/V) at a flow of 1.0 ml/min and 3 mul injection volume. Quantification was ...
已读[32] 发布: 2013/05/19 16:41:01
两周涨幅较大的产品:液氯(山东),30.0%;乙腈(吉林石化),5.5%;硝酸(98%,长三角),3.9%;天然橡胶(标准胶1#,华东),3.7%;聚乙烯(LDPE,薄膜,长三角),3.7...
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