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市售电动磁力搅拌器所带磁搅棒附件数量有限。由于其体积小,使用时极易丢失。人们通常用两种方法制作磁搅棒代用品。一种是将一段粗铁丝装在塑料软管内,然后用火烧封住塑料管两端。这样制做的磁棒代用品不能用于与塑料起反应的溶液中,具有一定局限性。第二种方法是将一段粗铁丝装在玻璃管内,然后用酒精喷灯烧封玻璃管两端。这样制做的磁棒
Commercially available magnetic stirrers have a limited number of magnetic stirrer attachments. Due to its small size, it is easily lost during use. People usually make magnetic stir bar substitutes in two ways. One is to install a section of crude iron wire in a plastic hose, and then use fire to seal both ends of the plastic tube. Magnetic bar substitutes made in this way cannot be used in solutions that react with plastics and have certain limitations. The second method is to install a thick piece of wire in a glass tube, and then use an alcohol torch to seal the ends of the glass tube. Magnetic bar made in this way