包装与食品机械
包裝與食品機械
포장여식품궤계
PACKAGING AND FOOD MACHINERY
2014年
3期
22-24
,共3页
张丽华%毕海燕%马春颖%何余堂
張麗華%畢海燕%馬春穎%何餘堂
장려화%필해연%마춘영%하여당
粽叶%染色Cu2+%快速简便的方法
粽葉%染色Cu2+%快速簡便的方法
종협%염색Cu2+%쾌속간편적방법
bamboo leaves%dyeing Cu2+%a simple and rapid method
粽子大多为粽叶所包裹产品。为了保证粽子的卖相,不法供货商用硫酸铜、氯化铜等化学染色手段生产返青粽叶。这种返青粽叶肉眼不易鉴别。利用Fe能置换溶液中的 Cu2+变成Fe2+,Fe2+能与邻二氮菲生成稳定的红色络合物的原理,寻找一种快速简便的鉴别Cu2+的方法,以便初步判断返青粽叶的方法。
粽子大多為粽葉所包裹產品。為瞭保證粽子的賣相,不法供貨商用硫痠銅、氯化銅等化學染色手段生產返青粽葉。這種返青粽葉肉眼不易鑒彆。利用Fe能置換溶液中的 Cu2+變成Fe2+,Fe2+能與鄰二氮菲生成穩定的紅色絡閤物的原理,尋找一種快速簡便的鑒彆Cu2+的方法,以便初步判斷返青粽葉的方法。
종자대다위종협소포과산품。위료보증종자적매상,불법공화상용류산동、록화동등화학염색수단생산반청종협。저충반청종협육안불역감별。이용Fe능치환용액중적 Cu2+변성Fe2+,Fe2+능여린이담비생성은정적홍색락합물적원리,심조일충쾌속간편적감별Cu2+적방법,이편초보판단반청종협적방법。
Bamboo leaf was usually used as container of dumpling .In order to ensure the bamboo leaves to be sold illegally , some traders provide dyeing bamboo leaves by copper sulphate and copper chloride , which were identified difficultly by eyes .In this paper ,in order to determine dyeding bamboo leaves by a simple and rapid method for Cu 2+identification ,through the replacement reaction with Cu 2+,Fe transform into Fe 2+,and a stable red complex was formed by Fe 2+and phenanthroline .