国产精品一区二区不卡的视频,91在线欧洲12手机精品超级观看,美女福利视频一区 http://www.gengheonline.cn The Leading Supplier of China Amine Catalysts Mon, 17 Apr 2023 07:14:29 +0000 zh-CN hourly 1 https://wordpress.org/?v=6.1.7 http://www.gengheonline.cn/wp-content/uploads/2023/12/1.jpg Organotin content – Amine Catalysts http://www.gengheonline.cn 32 32 Organotin content http://www.gengheonline.cn/archives/42919 Mon, 17 Apr 2023 07:14:29 +0000 http://www.gengheonline.cn/archives/42919 The detection standard of organic tin content is determined according to different application scenarios. For example, organotin compounds are not commercially available when used as biocides in free-associated paints. In trisubstituted organotin compounds, the tin content is required to be no more than 0.1wt%. For mixtures or articles supplied to the public, the tin content in dibutyl compounds is required not to exceed 0.1 wt%. Organotin content refers to the content of organotin compounds in a substance. Due to the toxicity and environmental pollution of organotin compounds, organotin content is strictly regulated in many fields.

The detection of organic tin content requires the use of some chemical analysis methods, which are more common Including gas chromatography-mass spectrometry (GC-MS) and liquid chromatography (HPLC). The detection requires collecting samples, processing and preparing them with corresponding reagents, and then identifying and measuring organotin compounds through chromatographic separation and mass spectrometry detection.

Different countries and regions have different standard restrictions on organotin content, for example In Europe, the limit of organotin content that can be used is 0.1ppm, while in the United States, the limit of organotin content varies with the use environment and substances. In practical application, it is necessary to strictly control the content of organic tin and comply with relevant regulatory standards to ensure the safety and environmental protection of the production process.

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