tyl791128 2012-02-15 14:24 IP:遂宁
需求阿莫西林胶囊微生物限度验证方案,准确的回收率。因本人用薄膜过滤法操作,枯草芽孢杆菌无法回收回来,请各位高手支招。冲洗量是多大?青霉素酶用多大单位,多少量?   [更多]
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daxiao 2012-02-16 19:57 IP:重庆
求购《安捷伦完备的色谱和光谱产品目录 2011-2012 版》 要求是电子版。能复制就行。 如果有的请直接上传附件,凡符合要求都,先提交的中标 《安捷伦完备的色谱和光谱产品目录 2011-2012 版》介绍: 2011 年 3 月 15日,北京 — 安捷伦科技公司推出 2011-2012 版《完备的色谱和光谱产品目录》。该目录共 1,344 页,比上一版多出 50% 的产品。它是安捷伦收购瓦里安公司以来第一本包含色谱柱及其他消耗品的产品目录。 安捷伦化学品和消耗品事业部副总裁 Helen Stimson 表示:“这是我们有史以来最全面的产品目录,包括产品、兼容性图表、应用摘要、维护安排以及更多信息,它对于任何从事色谱或光谱的人来说都将是不可或缺的。”   [更多]
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12580 2012-03-01 16:46 IP:合肥
X20010169   30mg的   [更多]
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taideng 2012-03-07 23:02 IP:重庆
1.要求是中国药典2010年版一部word版,不是二部、三部,也不是pdf版 2.要求word版是正式的标准,而不是标准修改稿 3.不需要中药材部份(我已有),只需要中成药部分 4.要求基本没有错误,不有用PDF的复制或转化,这样错误太多。 5.网上随便搜索来的东西我已有,都不符合上面的要求,请不要投稿   [更多]
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daxiao 2012-03-30 11:49 IP:重庆
求购欧洲药典EP7.5的电子版如果有请联系我QQ:1620567963   [更多]
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csc 2012-05-10 10:51 IP:重庆
目前公司金银花绿原酸粗提产品总灰分超标,高达15%---20%。原材料灰分符合国家药典标准,在10%以内,但提取,过滤,纳滤浓缩,复浓缩之后,滤袋过滤,喷雾干燥,得到的产品总灰分高达18%,有的高过20%,我们生产过程中用的水都是RO反渗透纯化水。 希望有关专家现场指导或合作开发处理   [更多]
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dushi 2012-06-16 15:27 IP:重庆
复方丹参片补充检验方法,要求是扫描件 注意是补充检验方法而不是常规标准   [更多]
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永达化工 2012-09-24 14:31 IP:济南
Disulfiram 我想要一份USP版本的分析单   [更多]
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changxin 2012-09-26 21:59 IP:重庆
任务材料需要提供与化合物相匹配的核心结构和每种化合物合成的详细的参考依据。合格者会得到一定的奖励。将给予每种化合物知识产权转让费9000元,非独家许可使用化合物,以达到研究目的,比如:研究化合物分子的性质和分子衍生物。 Seeking Bicyclic Aminoketones AWARD: varies | DEADLINE: 10/22/12 | ACTIVE SOLVERS: 24 | POSTED: 9/21/12 Source: InnoCentive Challenge ID: 9932910 Type: RTP Detailed Description & Requirements Intellectual Property: In return for the Initial Transfer Fee of $1,500 per compound, you are expected to grant the Seeker only a non-exclusive license to use your compound for internal, research purposes (for example, researching the molecule’s properties or preparing derivatives of the molecule). Material supply of non-commercial compounds matching the shown core structures is desired. For Solvers’ information, procedures for preparing compounds of this type may be found in the following references: Synthesis, 1, 1979, 50. Synthesis, 3, 2010, 493. Tetrahedron, 68 (4), 2012, 1286. J. Organic Chem, 73 (6), 2008, 2114. J. Med. Chem, 37 (18), 1994, 2831. More specifically, the Seeker is looking for compounds that meet the following Requirements: Structure: FeatureRange StructureA bicyclic aminoketone as shown in the structures above. Elements in R and A groupsR = H, Me, or protecting group (preferably Boc) A = A 1-3 membered linker where one atom may be N, O, or S Substituents– In addition to H, the core rings and/or the A linker may be substituted with Me or F. Unsaturation– The core rings and/or the A linker may include an olefin, including an exo olefin, but may not contain any additional carbonyl groups. Additional Rings– The Seeker would prefer compounds that have only the bicyclic structure shown above, however, they may consider compounds with an additional ring fused to the core bicycle. Stereochemistry– The Seeker will only consider compounds which are single diastereomers. In cases where the compound may exist as two enantiomers, the Seeker will consider   [更多]
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changxin 2012-09-27 11:01 IP:重庆
这项任务要要求设计一个自动化的,高通量的仪器 , 可以定量地和可重复地测定的油水乳化液的分离。 这个任务需要提交一份书面建议书。 An Instrument for Quantitative, Reproducible Characterization of Water/Oil Emulsions AWARD: $30,000 USD | DEADLINE: 10/15/12 | ACTIVE SOLVERS: 508 | POSTED: 8/15/12 Source: InnoCentive Challenge ID: 9933086 Type: Theoretical-IP Transfer Detailed Description & Requirements The presence of emulsions in oil operations is common and generally undesirable. Crude oil emulsions typically form due to the presence of naturally occurring emulsifying agents (asphaltenes, resins, etc.) in crude oil. The high cost associated with transportation and corrosion of equipment is one of the problems caused by the presence of water in the crude oil. Therefore, oil dehydration is required, which is often achieved through chemical treatment using demulsifiers. While the Seeker has identified ~200 liquid “demulsifier” agents, compounds that in amounts of ~100-500 ppm can aid in the resolution of the water and oil phases, they lack a quantitative and reproducible assay for determining demulsifier effectiveness at resolving the emulsion. Currently, the Seeker performs a “bottle test” in which they add ~15-100 mL of the emulsion into a bottle, add the different demulsifiers, shake, and then visually observe which bottles show the best phase separation. This assay clearly relies on visual detection by a trained observer and is not nearly as quantitative or reproducible as the Seeker desires. Results from a bottle test with the same emulsion and three different demulsifiers are shown below. The bottle on the left has clearly not been resolved into two distinct phases. While the middle bottle shows significant improvement, careful inspection of the phase boundary shows a slight amount of oil contaminating the water layer and a slightly undefined interface. Finally, the bottle on the right shows an optimally resolved two-phase system with a very clear oil/water phase boundary. Important Note:   [更多]
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