全(quan)自(zi)動電(dian)熱消解儀(yi)的(de)消化(hua)原理: 將(jiang)樣(yang)品和(he)消化(hua)液(ye)置(zhi)於(yu)消化(hua)管中(zhong),在(zai)恒溫(wen)狀態下進行(xing)消化(hua),使(shi)樣(yang)品*消化(hua)後用(yong)於(yu)各種(zhong)儀(yi)器(qi)分析和(he)化(hua)學分析。消(xiao)化(hua)樣(yang)品範圍:品(pin)樣(yang)品,各種(zhong)水樣(yang),生物樣(yang)品(血,尿(niao),毛發(fa)),化(hua)妝品(pin)等。 全(quan)自(zi)動電(dian)熱消解儀(yi)的(de)主要(yao)技(ji)術參(can)數: 1)溫(wen)控範(fan)圍:室(shi)溫(wen)-300℃(特(te)別(bie)說明:溫(wen)度指恒溫(wen)塊溫(wen)度,消(xiao)解(jie)的(de)樣(yang)液(ye)溫(wen)度和(he)消化(hua)液(ye)的(de)沸點*)。 (2)溫(wen)度穩定(ding)性:≤2℃。 (3)控(kong)溫(wen)精度(du):±0.1 (3)消(xiao)化(hua)孔數(shu):6孔,孔徑:Φ16mm*65mm,適(shi)用(yong)於外(wai)徑Φ15mm的(de)消(xiao)化(hua)管。 (4)加熱功(gong)率(lv):300W (5)溫(wen)控方法:微(wei)電(dian)腦(nao)PID控(kong)制(zhi),LED顯(xian)示(shi),清晰(xi)直觀(guan)。 (6)加熱部(bu)分材質:鋁(lv)合(he)金 另(ling): 1、食品樣(yang)品消解: (1)將(jiang)消(xiao)解儀(yi)移(yi)入(ru)通到(dao)廚房(fang)中(zhong)設(she)加熱至120℃. (2)液(ye)體樣(yang)品(如(ru)白(bai)酒(jiu),純凈(jing)水,天(tian)然(ran)水等)吸取(qu)1-10.0ml(樣(yang)品至消化(hua)管中(zhong),加入(ru)三(san)粒玻(bo)璃(li)珠(zhu))將消(xiao)化(hua)管放(fang)入(ru)消(xiao)解(jie)儀(yi)上(shang)120℃加熱至近(jin)幹(gan),加入(ru)1.0ml(消(xiao)化(hua)液(ye)240℃恒溫(wen)消解(jie)至(zhi)近(jin)幹(gan),取(qu)下放(fang)冷(leng),定(ding)容壹(yi)定(ding)體積進行(xing)測定(ding)). (3)壹(yi)般(ban)性食品(如(ru)色酒(jiu),飲(yin)料(liao),水(shui)果(guo)糖,沖(chong)劑(ji),面食品,粥類等)稱(cheng)取(qu)0.500-1.000g樣(yang)品至消化(hua)管中(zhong),加入(ru)三(san)粒玻(bo)璃(li)珠(zhu),加入(ru)10.0ml消(xiao)化(hua)液(ye),消(xiao)化(hua)管放(fang)入(ru)消(xiao)解(jie)儀(yi)上(shang)160℃消(xiao)化(hua)約(yue)1-3h)至(zhi)消(xiao)化(hua)液(ye)澄(cheng)清後,240℃恒溫(wen)消解(jie)至(zhi)*,取(qu)下至冷(leng),定(ding)容至(zhi)壹(yi)定(ding)體積進行(xing)測定(ding). (4)含(han)大量(liang)油脂(zhi)和(he)沈(chen)澱(dian)物(wu)的食品(如(ru)肉(rou)食品,香(xiang)腸,豆油,奶粉(fen),奶糖(tang),巧(qiao)克(ke)力等)稱(cheng)取(qu)0.300-0.500g樣(yang)品至消化(hua)管中(zhong)加入(ru)三(san)粒玻(bo)璃(li)珠(zhu),加入(ru)10ml消(xiao)化(hua)液(ye),將(jiang)消(xiao)化(hua)管放(fang)入(ru)消(xiao)解(jie)儀(yi)上(shang)160℃消(xiao)化(hua)3h,如(ru)果溶(rong)液(ye)已(yi)澄(cheng)清240℃恒溫(wen)消解(jie)至(zhi)近(jin)幹(gan),取(qu)下放(fang)冷(leng),定(ding)容至(zhi)壹(yi)定(ding)體積進行(xing)測定(ding). 2、水(shui)樣(yang)消解: 1.00-10.0ml樣(yang)品至消化(hua)管中(zhong),加入(ru)三(san)粒玻(bo)璃(li)珠(zhu),將(jiang)消(xiao)化(hua)管放(fang)入(ru)消(xiao)解(jie)儀(yi)上(shang)120℃加熱至近(jin)幹(gan),加入(ru)消(xiao)化(hua)劑(ji)(清潔(jie)水(shui)加入(ru)0.50ml消(xiao)化(hua)劑(ji),汙水加入(ru)2ml消(xiao)化(hua)劑(ji))240℃恒溫(wen)消解(jie)至(zhi)近(jin)幹(gan)取(qu)下放(fang)冷(leng),定(ding)容壹(yi)定(ding)體積進行(xing)測定(ding). 3、發(fa)樣(yang)消解: 稱(cheng)取(qu)0.200g樣(yang)品至消化(hua)管中(zhong)加入(ru)三(san)粒玻(bo)璃(li)珠(zhu)加入(ru)5.0ml消(xiao)化(hua)液(ye)於(yu)消解儀(yi)上(shang)160℃消(xiao)化(hua)30min.240℃恒溫(wen)消解(jie)至(zhi)近(jin)幹(gan),取(qu)下放(fang)冷(leng),定(ding)容至(zhi)壹(yi)定(ding)體積進行(xing)測定(ding). 4、化(hua)妝品(pin)消解(jie): 取(qu)0.100-0.200g化(hua)妝品(pin)至消(xiao)化(hua)管中(zhong),加入(ru)三(san)粒玻(bo)璃(li)珠(zhu)加入(ru)5-10ml消(xiao)化(hua)液(ye),160℃消(xiao)化(hua)1-2h至(zhi)溶(rong)液(ye)澄(cheng)清240℃恒溫(wen)消解(jie)至(zhi)近(jin)幹(gan),取(qu)下放(fang)冷(leng),定(ding)容壹(yi)定(ding)體積進行(xing)測定(ding). |