Color development reaction research of melamine in milk
According to the color development reaction between starch/iodine reagent and products which obtained by fumigating melamine with chlorine,a method for determination of melamine in milk was put forward.The conditions of method were researched.The best conditions are as follows.Volume ratio of milk and extraction agent is 1∶1.5,dissolved with ultrasonic washer for 5 minutes,centrifugal separation 4000r/min for 5 minutes,extracted by C008 cation exchange resin column.The results are as follows:detection limit is 10mg/L,the linear range is 25-250 mg/L,related coefficient r is 0.994,coefficient of recovery is 94%-110%,and relatively standard deviation is 0.9%.This method is easy handling,cheap equipment,good practicability and recovery,can be used as low cost detection method.
Melamine color development reaction milk starch/iodine reagent
Xiquan SUN Shenglin QIAO Zhengxiao LIU Lingle KONG
Department of Chemistry, College of Chemistry, Chemical and Environmental Engineering,Qingdao University, Qingdao 266071, Shandong, China
国际会议
昆明
英文
1133-1138
2011-12-28（万方平台首次上网日期，不代表论文的发表时间）