甲醛釋放(fang)量(liang)測定器(qi) 穿孔萃取儀
甲(jia)(jia)(jia)醛(quan)穿(chuan)孔萃取(qu)(qu)儀新(xin)(xin)操作原(yuan)理:一、穿(chuan)孔萃取(qu)(qu),把(ba)游(you)離甲(jia)(jia)(jia)醛(quan)從(cong)板材(cai)中(zhong)全部(bu)分(fen)離出來(lai),它分(fen)為(wei)兩個過程,首先將(jiang)溶(rong)劑甲(jia)(jia)(jia)苯與試件共熱(re)。通過液-固萃取(qu)(qu)使甲(jia)(jia)(jia)醛(quan)從(cong)板材(cai)中(zhong)溶(rong)解出來(lai),然后將(jiang)溶(rong)有甲(jia)(jia)(jia)醛(quan)的甲(jia)(jia)(jia)苯通過穿(chuan)孔器與水進行液-液萃取(qu)(qu),把(ba)甲(jia)(jia)(jia)醛(quan)轉溶(rong)于水中(zhong)。二(er)(er)、測(ce)定甲(jia)(jia)(jia)醛(quan)水溶(rong)液的濃度,在(zai)乙酰(xian)(xian)(xian)丙(bing)(bing)酮(tong)和乙酸銨混合(he)溶(rong)液中(zhong),甲(jia)(jia)(jia)醛(quan)與乙酰(xian)(xian)(xian)丙(bing)(bing)酮(tong)反應(ying)生成二(er)(er)乙酰(xian)(xian)(xian)基二(er)(er)氫盧剔啶,在(zai)波長為(wei)412MM時,它的吸光度大(da)。 甲(jia)(jia)(jia)醛(quan)穿(chuan)孔萃取(qu)(qu)儀新(xin)(xin)產品技術參(can)數:1,錐(zhui)形接頭(tou)(tou),磨口(kou)配(pei)合(he)29,322,冷凝管3,錐(zhui)形接頭(tou)(tou),磨口(kou)配(pei)合(he)45、40和71、514,穿(chuan)孔器5,穿(chuan)孔器附件6,球形管7,三(san)角(jiao)燒(shao)瓶 250ml8,錐(zhui)形接頭(tou)(tou),磨口(kou)配(pei)合(he)29、32、和45、409,圓底燒(shao)瓶1000ml,磨口(kou)配(pei)合(he)45、40