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已读[727]
发布: 2013/09/09 09:32:27
Business Standard The Japanese chemical major, Tosoh Corporation, has decided to set up a plant to produce Rzeta, the company's proprietary, new, and unique emission-free reactive amine catalyst for polyurethane ( PU ) foam. The plant will be constructed on the grounds of ...
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已读[853]
发布: 2013/09/09 08:34:17
如苯二胺类,酚类,氨基酚类以及过氧化物如双氧水等成分,安全性是优于传统染发剂的。而有些中药、植物等是在化妆品中禁用的。比如白芷这种植物,它是很强的光致敏...
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已读[469]
发布: 2013/09/06 15:56:47
比较低价的染发剂成分主要为:丙二醇、碳酸钠、甲苯、香精、苯二胺等,一些价位较高的染发剂虽然打着植物提取物精华的名义,但在成分表中依然存在着苯二胺、甲苯等...
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已读[335]
发布: 2013/09/06 03:35:51
Bradenton Herald "As a company, it is our intent to find the most efficient, the most economical carbon-capture process available so that we can facilitate the bridge between fossil fuels and less carbon-intensive fuels," Brown said. Bara and Brown said carbon capture ... and more »
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已读[373]
发布: 2013/09/06 03:35:46
Montgomery Advertiser “As a company, it is our intent to find the most efficient, the most economical carbon-capture process available so that we can facilitate the bridge between fossil fuels and less carbon-intensive fuels,” Brown said. Bara and Brown said carbon capture ... and more »
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已读[523]
发布: 2013/09/05 16:37:52
其中,直肠制剂:蛋白多肽药物的直肠给药吸收也比较少,但直肠中环境比较温和,pH近中性,而酶活性很低;在直肠中吸收的药物也可直接进入全身循环,避免药物在肝脏的首...
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已读[483]
发布: 2013/09/05 15:58:05
而且,亚硝酸盐与食物中的氨基酸和低级胺类反应,还可形成致癌的亚硝胺和亚硝酰胺类物质,增加胃癌的发病风险。 当然,蔬菜刚刚烹调好时细菌的数量最低,营养素保存也...
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已读[469]
发布: 2013/07/29 21:12:49
夏天气温高,细菌繁殖力强,加之许多人泡茶后不盖杯盖,茶的一些成分被氧化,胺类物质增多,隔夜茶饮后会对人体有害。 二、空腹疲劳不要饮茶。人空腹时,胃中含有...
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已读[492]
发布: 2013/07/29 21:12:45
长期服用抗生素者,会流失维生素B群及维生素K,影响肠胃功能;感冒药及止痛剂会降低血液中维生素A含量;黄胺类药及降胆固醇药会影响叶酸吸收。高血压患者、肾炎患者服用...
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已读[503]
发布: 2013/07/29 21:12:42
由于酸度高食用后易被肠道吸收,在经肾脏排泄时极易在泌尿系统形成结石;而腌制后的食物,大多含有较多的亚硝酸盐,与人体中胺类物质生成亚硝胺,是一种容易致癌的物质...
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