taiji 2011-08-30 15:38 IP:重庆
  岛津公司色谱柱产品目录   1.需要是word版或是excel电子表格版,pdf版本的不要   2.要比较新的产品目录。至少是2010年后(包括2010年)的产品目录   3.产品目录齐全的,先提交的中标4.最好是要包括液相色谱和气相色谱柱联系   [更多]
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¥300.00
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管理员 2011-09-06 10:37 IP:重庆
  Enriching Low-Abundance Serum & Plasma Proteins   AWARD: $30,000 USD | DEADLINE: 10/01/11 | ACTIVE SOLVERS: 254 | POSTED: 8/01/11   Source: InnoCentive Challenge ID: 9932714 Type: Theoretical-licensing   Detailed Description & Requirements   Concentrations of proteins in serum and plasma span up to 10 orders of magnitude – e.g. from serum albumin (50 mg/ml) to some cytokines and chemokines (<5 pg/ml)   Protein molecules most useful to researchers exist at levels that are approximately at or below the 10,000 pg/ml range. Detection and quantification of these low-abundance proteins is obscured by the presence of high abundance proteins. Current methods for reducing the concentration of high-abundance proteins are either inefficient, targeted at certain proteins, or introduce bias and other artifacts.   The Seeker is looking to identify novel methods to reliably reduce or eliminate high abundance proteins so that detection of protein analytes present at the 1-10 ng/ml scale or lower may be accurately detected.   The Seeker envisages that a sample preparation techniques may be the most likely route to a solution. However, alternative approaches are also welcomed. The Seeker is highly experienced in sample preparation technologies for reduction of high-abundance proteins & is not interested in simple proposals of commercially available, or published, technologies and techniques.   The Seeker is aware of the following ‘sample enrichment’ technologies for reducing the concentration of high abundance proteins from serum & plasma. The techniques are listed together with their limitations for the Seeker:   Immunoaffinity depletions– depletions are extremely specific to the antigens the antibodies target. Commercially available kits commonly deplete 6-20 high abundance proteins with more than 90% efficiency. Although this enables detection of more low-abundance proteins, the column-based process induces some bias in low-abundance protein   [更多]
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¥20000.00
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wuji 2013-07-31 08:45 IP:重庆
技术求购内容: 1.氧杂环丁烷(oxetane),氮杂环丁烷(azetidine),硫杂环丁烷(thietane)及其螺环化合物的合 成及工艺放大研究; 2.其他新药物砌块及特殊药物中间体的合成和工艺放大; 3.向科瑞提供上述的中间体   [更多]
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wuji 2013-09-04 11:21 IP:重庆
求高纯磷钨酸清洁合成技术 要求:综合得率: ≥85% 不溶物: ≤ 0.020% 氯化物(Cl-): ≤ 0.010%   [更多]
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avtlethy 2013-09-11 12:44 IP:上海
可用作医药中间体,除对分子量、PH等有常规要求外,对二醇含量、重金属等也要符合合成、药用的要求。 Specifications appearance: white to pale yallowish flaks PH: 4.5-7.5 average molecular weight: 1800-2200 diol contet: not more than 1% heavy metals: not more than 5ppm residue on ignition: not more than 0.1%   [更多]
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xiaomayi 2014-04-18 16:03 IP:重庆
59338-84-02-甲氧基-4-氨基-5-硝基苯甲酸,能做的联系我。由于不好定价,请威客先出价!   [更多]
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¥10.00
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xiaomayi 2014-04-18 16:06 IP:重庆
急求 37441-50-2 1,4-丁烷磺内酰胺 100g 1159489-46-9 4-(1'-羧基L-环丙基)苯硼酸 100g 由于不好定价,请报价!   [更多]
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xiaomayi 2014-04-18 16:21 IP:重庆
下列产品能做的 请联系 149716-78-9 (R)-N-叔丁氧羰基吡咯烷-2-硼酸 100g 659722-71-1 2-(Tributylstannyl)-5-(trifluoromethyl)pyridine 100g " 由于不好定价,请报价!   [更多]
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¥10.00
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xiaomayi 2014-04-18 16:25 IP:重庆
下列产品能做的 请联系 62312-55-4 5-Hydroxy-2-pyrrolidinone 100g 19716-56-4 1-苄基-1,2,3,4-四氢异喹啉 25g " 由于不好定价,请报价!   [更多]
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xiaomayi 2014-04-18 16:27 IP:重庆
下列产品能提供的 35857-89-7 3-氰基-6-氯哒嗪 100g 93-01-6 2-萘酚-6-磺酸 100g 请联系我。 由于不好定价,请报价!   [更多]
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¥10.00
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