Test Purpose : To evaporate acid from a sample treated with MDS in order to reduce the nitric acid concentration of the final diluted sample to less than 10%.【More】

Weigh 0.2g (precisely 0.1mg) sample into a 50ml PTFE digestion tube, add 5ml hydrochloric acid, heat digestion at 150℃ for 30min on a graphite digestion instrument in a fume hood, add 5ml nitric acid, continue heating digestion at 150℃ for 30min , Add 4ml of h【More】

Plastic and plastic industry chiller: plastic processing machinery molding mold cooling, can greatly improve the surface finish of plastic products, reduce the surface marks and internal stress of plastic products, so that the product does not shrink, no defor【More】