粮食和蔬菜中硫含量的测定  

Determination of Sulfur in Foods and Vegetables

作　　者：钟其云[1] 

机构地区：[1]北京有色金属研究总院,北京100088

出　　处：《分析试验室》1993年第3期50-51,47,共3页Chinese Journal of Analysis Laboratory

摘　　要：本文利用高频红外法测定粮食和蔬菜中硫含量,它是一种快速、灵敏和简便的方法。试样经烘烤和蒸发除去水分,用钨锡粒为助熔剂并复盖试样,盖上坩埚盖防止飞溅。测得结果重现性好,相对标准偏差<1.9%,标准回收率>97%。A rapid,sensitive,simple and convenient method for the determination of sulfur in foods and vegetables by high frequency induction combustion-infrared absorption photometry is reported. Water in samples can be eliminated by baking and roasting. Tungsten and tin granules were used as flux and covered the sample. The relative standard deviation is less than 1.9%. The recoveries are better than 97%.

关 键 词：粮食和蔬菜 硫测定 高频红外法 

分 类 号：TS207.3[轻工技术与工程—食品科学]