甲醛(quan)釋放量測定(ding)器 穿孔萃取(qu)儀(yi)
甲(jia)(jia)(jia)醛(quan)穿(chuan)孔(kong)萃(cui)(cui)取(qu)儀(yi)新操作原理:一、穿(chuan)孔(kong)萃(cui)(cui)取(qu),把(ba)游離甲(jia)(jia)(jia)醛(quan)從板(ban)材中全部(bu)分(fen)離出(chu)來,它分(fen)為兩個過(guo)程,首(shou)先將溶(rong)劑甲(jia)(jia)(jia)苯與試(shi)件(jian)共熱。通過(guo)液-固萃(cui)(cui)取(qu)使(shi)甲(jia)(jia)(jia)醛(quan)從板(ban)材中溶(rong)解出(chu)來,然后將溶(rong)有甲(jia)(jia)(jia)醛(quan)的甲(jia)(jia)(jia)苯通過(guo)穿(chuan)孔(kong)器(qi)與水進(jin)行(xing)液-液萃(cui)(cui)取(qu),把(ba)甲(jia)(jia)(jia)醛(quan)轉溶(rong)于水中。二、測定甲(jia)(jia)(jia)醛(quan)水溶(rong)液的濃度(du),在(zai)乙酰丙酮和(he)乙酸(suan)銨混合溶(rong)液中,甲(jia)(jia)(jia)醛(quan)與乙酰丙酮反應生成二乙酰基二氫盧(lu)剔啶,在(zai)波長為412MM時,它的吸光度(du)大。 甲(jia)(jia)(jia)醛(quan)穿(chuan)孔(kong)萃(cui)(cui)取(qu)儀(yi)新產品技術參數:1,錐形(xing)接(jie)頭,磨(mo)口(kou)配(pei)合29,322,冷凝管(guan)3,錐形(xing)接(jie)頭,磨(mo)口(kou)配(pei)合45、40和(he)71、514,穿(chuan)孔(kong)器(qi)5,穿(chuan)孔(kong)器(qi)附件(jian)6,球形(xing)管(guan)7,三角燒(shao)瓶 250ml8,錐形(xing)接(jie)頭,磨(mo)口(kou)配(pei)合29、32、和(he)45、409,圓(yuan)底(di)燒(shao)瓶1000ml,磨(mo)口(kou)配(pei)合45、40