蛇(she)形索氏(shi)提取(qu)(qu)器(蛇(she)形脂(zhi)肪抽出器)是(shi)利用溶(rong)(rong)劑(ji)(ji)(ji)回(hui)流及虹吸原理(li)，使(shi)固(gu)體(ti)物(wu)質(zhi)連續不斷地(di)被(bei)純溶(rong)(rong)劑(ji)(ji)(ji)萃(cui)(cui)取(qu)(qu)，既節(jie)約溶(rong)(rong)利萃(cui)(cui)取(qu)(qu)效率又高(gao)。萃(cui)(cui)取(qu)(qu)前(qian)先將(jiang)固(gu)體(ti)物(wu)質(zhi)研碎，以增加(jia)固(gu)液(ye)接(jie)觸(chu)的(de)(de)面(mian)(mian)積。然后，將(jiang)固(gu)體(ti)物(wu)質(zhi)放在濾紙套內，置于提取(qu)(qu)器中，提取(qu)(qu)器的(de)(de)下(xia)端與盛(sheng)有溶(rong)(rong)劑(ji)(ji)(ji)的(de)(de)圓底燒(shao)瓶(ping)(ping)相(xiang)連，上面(mian)(mian)接(jie)回(hui)流冷(leng)凝管(guan)。加(jia)熱圓底燒(shao)瓶(ping)(ping)，使(shi)溶(rong)(rong)劑(ji)(ji)(ji)沸騰，蒸氣通過提取(qu)(qu)器的(de)(de)支(zhi)管(guan)上升，被(bei)冷(leng)凝后滴入(ru)提取(qu)(qu)器中，溶(rong)(rong)劑(ji)(ji)(ji)和固(gu)體(ti)接(jie)觸(chu)進行(xing)萃(cui)(cui)取(qu)(qu)，當溶(rong)(rong)劑(ji)(ji)(ji)面(mian)(mian)超過虹吸管(guan)的(de)(de)高(gao)處時，含有萃(cui)(cui)取(qu)(qu)物(wu)的(de)(de)溶(rong)(rong)劑(ji)(ji)(ji)虹吸回(hui)燒(shao)瓶(ping)(ping)，因而萃(cui)(cui)取(qu)(qu)出一(yi)部分(fen)物(wu)質(zhi)，使(shi)固(gu)體(ti)物(wu)質(zhi)不斷為純的(de)(de)溶(rong)(rong)劑(ji)(ji)(ji)所(suo)萃(cui)(cui)取(qu)(qu)、將(jiang)萃(cui)(cui)取(qu)(qu)出的(de)(de)物(wu)質(zhi)富集在燒(shao)瓶(ping)(ping)中。液(ye)固(gu)萃(cui)(cui)取(qu)(qu)是(shi)利用溶(rong)(rong)劑(ji)(ji)(ji)對(dui)固(gu)體(ti)混合物(wu)中所(suo)需成分(fen)的(de)(de)溶(rong)(rong)解度大,對(dui)雜質(zhi)的(de)(de)溶(rong)(rong)解度小來達到提取(qu)(qu)分(fen)離的(de)(de)目的(de)(de)。