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已读[387]
发布： 2013/07/06 00:03:17
多环芳烃的生物降解以微生物破裂芳环为开始,产生易于参加活体细胞三羧酸循环的脂肪族化合物。Kanaly和Harayama研究了用绮丽小克银汉霉菌和热带念珠菌降解多环芳烃。Sing...
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已读[399]
发布： 2013/06/16 13:19:08
多胺(PA)包括腐胺(PU)、精脒(SPD)和尸胺(CA),为低分子脂肪族化合物。正常人体内多胺含量极少,而恶性肿瘤时。肿瘤组织及体液中多胺水平明显升高,且与肿瘤...
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已读[525]
发布： 2013/06/14 09:49:17
Nature.com On the other hand, linear aliphatic chains present in 3 imparted solid features at room temperature, emphasising the importance of branched alkyl chains in obtaining solvent -free liquids at room temperature. ..... A violet colour at 2 mol% (Fig. 6a (vi ...
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已读[330]
发布： 2013/06/14 07:48:42
Times of India ... including basic concepts and stereochemistry, gases and liquids, measurement of surface tension, viscosity & Avogadro number, chemical bonding, acids and bases, aliphatic hydrocarbons and preparation of organic compounds and chromatography.
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已读[414]
发布： 2013/06/08 14:11:20
安培检测比电导检测、紫外检测的灵敏度更高,选择性也更好,尤其对于那些不适于直接光学检测的物质(如脂肪族化合物)具有良好的使用价值。 仪器特点: - 检测体系简单...
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已读[408]
发布： 2013/06/08 14:10:47
链脂肪族化合物可有效地被氧化。 我们也经常听到或看到CODcr 是多少, 和CODcr 严重超标的话。 那么, CODcr 排放标准是多少呢? CODcr 到底多大才是国家允许排放...
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已读[1959]
发布： 2013/06/08 04:40:06
Houston Chronicle ... plant sources (paste, cellulose and rubber ). Synthetic adhesives include epoxy, cyanoacrylate, contact cement, hot melt, polyurethane, polyvinyl acetate (PVA), resin, resorcinol, silicone , spray and urea formaldehyde. Whether natural or synthetic ...
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已读[345]
发布： 2013/06/07 13:05:04
Environmental Expert (press release) Refining and transfer operations release petroleum hydrocarbons composed of aliphatic and aromatic compounds , which are biodegradable in biofilters. Some leaking underground storage tanks pose another environmental hazard. The hydrocarbon ...
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已读[486]
发布： 2013/06/06 22:42:22
separationsNOW.com Solutions of the aliphatic (formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, valeraldehyde, glyoxal , methylglyoxal) and aromatic compounds (benzaldehyde, 3-methylbenzaldehyde, 2-ethylbenzaldehyde, 2,5-dimethylbenzaldehyde, ...
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已读[321]
发布： 2013/06/04 06:03:36
Wall Street Journal (press release) The addition of Merquinsa's line of innovative technologies - aliphatic , bio-based, polycaprolactone (PCL), copolyester elastomeric, Pearlstick(TM) TPU for adhesives and solvent-free Pearlbond(TM) TPU product ranges for HMPUR and footwear- allows ... and more »
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