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燃(ran)(ran)烧(shao)器(qi)(qi),是使燃(ran)(ran)料(liao)和(he)(he)空气(qi)(qi)以(yi)一(yi)定(ding)方式喷出混合(he)燃(ran)(ran)烧(shao)的(de)(de)(de)装置统称。燃(ran)(ran)烧(shao)器(qi)(qi)按(an)类(lei)型和(he)(he)应用(yong)(yong)(yong)领域分工业(ye)燃(ran)(ran)烧(shao)器(qi)(qi)、燃(ran)(ran)烧(shao)机、民用(yong)(yong)(yong)燃(ran)(ran)烧(shao)器(qi)(qi)、特种燃(ran)(ran)烧(shao)器(qi)(qi)几种。多用(yong)(yong)(yong)不锈钢(gang)或金(jin)属钛等(deng)耐(nai)(nai)腐蚀,耐(nai)(nai)高温的(de)(de)(de)材料(liao)制成。燃(ran)(ran)烧(shao)器(qi)(qi)的(de)(de)(de)作用(yong)(yong)(yong)是通过(guo)(guo)火(huo)(huo)焰(yan)(yan)燃(ran)(ran)烧(shao)使试样(yang)原(yuan)子(zi)化(hua)。被(bei)雾化(hua)的(de)(de)(de)试液进入燃(ran)(ran)烧(shao)器(qi)(qi),在火(huo)(huo)焰(yan)(yan)温度(du)和(he)(he)火(huo)(huo)焰(yan)(yan)气(qi)(qi)氛作用(yong)(yong)(yong)下(xia),经(jing)过(guo)(guo)干燥、熔(rong)融、蒸发、离解等(deng)过(guo)(guo)程(cheng),产生大(da)量(liang)的(de)(de)(de)基(ji)态原(yuan)子(zi),以(yi)及部分激发态原(yuan)子(zi)、离子(zi)和(he)(he)分子(zi)。一(yi)个设计良好(hao)的(de)(de)(de)燃(ran)(ran)烧(shao)器(qi)(qi)应具有(you)原(yuan)子(zi)化(hua)效率高、噪(zao)声(sheng)小、火(huo)(huo)焰(yan)(yan)稳定(ding)的(de)(de)(de)性(xing)能,以(yi)保有(you)较高的(de)(de)(de)吸收(shou)灵敏(min)度(du)和(he)(he)测定(ding)精(jing)密度(du)。原(yuan)子(zi)吸收(shou)光谱分析中常用(yong)(yong)(yong)缝(feng)隙燃(ran)(ran)烧(shao)器(qi)(qi)产生原(yuan)子(zi)蒸气(qi)(qi)。根据所用(yong)(yong)(yong)燃(ran)(ran)气(qi)(qi)和(he)(he)助(zhu)燃(ran)(ran)气(qi)(qi)的(de)(de)(de)种类(lei)不同,燃(ran)(ran)烧(shao)器(qi)(qi)缝(feng)隙的(de)(de)(de)长度(du),宽度(du)各有(you)不同,一(yi)般燃(ran)(ran)烧(shao)器(qi)(qi)上都标注(zhu)有(you)适用(yong)(yong)(yong)的(de)(de)(de)燃(ran)(ran)气(qi)(qi)和(he)(he)助(zhu)燃(ran)(ran)气(qi)(qi)。