毛細管色譜柱安裝步驟如下: 步驟1:檢查氣體過濾器、載氣、進(jin)樣(yang)墊(dian)和(he)襯(chen)管(guan)等(deng)檢(jian)查(zha)進(jin)樣(yang)墊(dian)和(he)氣(qi)體(ti)過(guo)濾(lv)器(qi),保(bao)證(zheng)輔(fu)助(zhu)氣(qi)和(he)檢(jian)測(ce)器(qi)用(yong)氣(qi)通(tong)暢(chang)有(you)效(xiao)。如(ru)果(guo)以(yi)前(qian)做(zuo)過(guo)沸(fei)點(dian)較(jiao)高(gao)的(de)化(hua)合(he)物(wu),需(xu)要(yao)將(jiang)進(jin)樣(yang)口(kou)襯(chen)管(guan)清(qing)洗(xi)或(huo)更(geng)換(huan)。步(bu)驟(zhou)2:將jiang螺luo母mu和he卡ka套tao裝zhuang在zai柱zhu上shang,並bing將jiang色se譜pu柱zhu兩liang端duan口kou小xiao心xin切qie平ping在zai色se譜pu柱zhu的de一yi端duan裝zhuang上shang相xiang應ying的de螺luo母mu和he卡ka套tao,此ci時shi色se譜pu柱zhu端duan口kou無wu前qian後hou之zhi分fen,色se譜pu柱zhu支zhi架jia的de支zhi撐cheng部bu分fen應ying總zong是shi朝chao向xiang著zhe柱zhu箱xiang門men。安an裝zhuang好hao螺luo母mu和he卡ka套tao後hou,將jiang色se譜pu柱zhu端duan口kou切qie平ping,並bing用yong放fang大da鏡jing進jin行xing檢jian查zha,以yi確que認ren切qie口kou和he管guan壁bi成cheng直zhi角jiao,並bing且qie沒mei有you殘can留liu的de碎sui屑xie,沒mei有you毛mao邊bian或huo不bu平ping的de切qie割ge麵mian。步bu驟zhou3:jiangsepuzhulianyujinyangkoushangtongchanglaishuo,sepuzhudedingduanyingbaochizaijinyangkouchenguandezhongxiabu,dangjinyangzhenchuanguogedianwanquancharujinyangkouhou,ruguozhenjianyuchenguanzhongdesepuzhudingduanxiangcha1-2cm,這就是較為理想的狀態。從色譜柱架上取出需要連接的足夠的長度,並按步驟2切qie割ge柱zhu子zi,連lian接jie到dao進jin樣yang口kou。避bi免mian用yong力li彎wan曲qu壓ya擠ji毛mao細xi柱zhu,並bing小xiao心xin不bu要yao讓rang標biao記ji牌pai等deng有you鋒feng利li邊bian緣yuan的de物wu品pin與yu色se譜pu柱zhu接jie觸chu磨mo擦ca,以yi防fang柱zhu身shen斷duan裂lie或huo受shou損sun。將jiang色se譜pu柱zhu正zheng確que地di嵌qian入ru進jin樣yang口kou後hou,用yong手shou把ba連lian接jie螺luo母mu擰ning上shang,用yong手shou擰ning緊jin後hou用yong扳ban手shou再zai擰ning1/4-1/2圈。步驟4:接通載氣載氣必須為高純氮氣(或氦氣),純度達99.999%,使用極性柱時(如FFAP、PEG-20M等),最zui好hao載zai氣qi加jia脫tuo氧yang管guan進jin一yi步bu脫tuo氧yang,這zhe樣yang可ke延yan長chang柱zhu子zi的de使shi用yong壽shou命ming。當dang色se譜pu柱zhu與yu進jin樣yang口kou連lian接jie好hao後hou,接jie通tong載zai氣qi。調tiao節jie柱zhu前qian壓ya力li以yi得de到dao合he適shi的de載zai氣qi流liu速su。將jiang色se譜pu柱zhu的de另ling一yi端duan(空端),插cha入ru裝zhuang有you己ji烷wan的de樣yang品pin瓶ping中zhong,正zheng常chang情qing況kuang下xia,我wo們men可ke以yi看kan見jian瓶ping中zhong穩wen定ding持chi續xu的de氣qi泡pao。如ru果guo沒mei有you氣qi泡pao,就jiu要yao重zhong新xin檢jian查zha一yi下xia載zai氣qi裝zhuang置zhi和he流liu量liang控kong製zhi器qi等deng是shi否fou安an裝zhuang完wan全quan或huo設she置zhi正zheng確que,並bing檢jian測ce一yi下xia整zheng個ge氣qi路lu有you無wu泄xie漏lou。等deng所suo有you問wen題ti解jie決jue後hou,將jiang色se譜pu柱zhu端duan口kou從cong瓶ping中zhong取qu出chu,擦ca試shi幹gan淨jing,保bao證zheng柱zhu端duan口kou無wu溶rong劑ji殘can留liu,再zai進jin行xing下xia一yi步bu安an裝zhuang。毛mao細xi管guan柱zhu前qian壓ya參can考kao設she置zhi(Mpa)柱長 m 柱內徑(mm) 0.25 0.32 0.53 15 0.05 0.04 0.02 30 0.1 0.08 0.03 50 0.18 0.14 0.05 步驟5:將色譜柱連於檢測器上其安裝和所需注意的事項與以上色譜柱與進樣口聯接(步驟3)部分所講述的大致相同。安裝時要注意色譜柱末端要高於尾吹點,或按照色譜儀說明書安裝。步驟6:進行氣體檢漏在色譜柱加熱前,要對GC係統進行檢漏。建議使用1∶1的異丙醇/水的混合溶液進行檢查。步驟7:色譜柱的老化色譜柱安裝和係統檢漏工作完成後,就可以對色譜柱進行老化了。將色譜柱程序升溫至最高使用溫度的30℃以下,恒溫30分鍾。這樣柱子內吸附的組份會被吹出,以免影響您的分析。最後,將色譜柱的溫度降低至所需要的溫度,即可進行實際樣品的分析。
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