作(zuo)為(wei)一(yi)名(ming)氣(qi)相(xiang)工(gong)作(zuo)者(zhe)想(xiang)讓(rang)氣(qi)相(xiang)色(se)譜(pu)儀(yi)器(qi)工(gong)作(zuo)正(zheng)常(chang)而(er)且(qie)能(neng)保(bao)持(chi)好(hao)的(de)檢(jian)測(ce)效(xiao)果(guo),日(ri)常(chang)的(de)維(wei)護(hu)和(he)良(liang)好(hao)的(de)使(shi)用(yong)習(xi)慣(guan)可(ke)是(shi)必(bi)不(bu)可(ke)少(shao)的(de),今(jin)天(tian)就(jiu)給(gei)大(da)家(jia)總結幾點,作為拋磚引玉,僅供大家日常使用的參考。
一、按儀器使用說明書的規程操作
zheyidianzhuyaoshizhenduixingouzhiheanzhuangdeyiqi,bujinyaoqingdianlingbujianyubeijianshifouqiquan,gengyaojianzhashuomingshushifouqiquan,yidingyaotuoshanbaoguanzhexieziliao,yibeirihouzhayue。zaidulicaozuoyiqiqian,yidingyaorenzhenyueduyouguanshiyongshuomingshu,bingqieyangeanguichengcaozuo。zheshizuohaoyiqifenxideqianti,erqiedangyiqichuxianwentishiyefangbianyuchangshanggoutong。tebieshihaizaibaoxiuqideyiqi,ruguoyinweicaozuobudangchanshengdeguzhanghuozhesunhuai,changshangkeshibuhuimianfeiweixiude,youshizhebifeiyonghaishixiangdangkeguande。
二、準備一份色譜柱的測試標樣
色(se)譜(pu)柱(zhu)性(xing)能(neng)是(shi)保(bao)證(zheng)分(fen)析(xi)結(jie)果(guo)的(de)關(guan)鍵(jian)。新(xin)購(gou)置(zhi)的(de)色(se)譜(pu)柱(zhu),首(shou)先(xian)要(yao)用(yong)測(ce)試(shi)樣(yang)來(lai)評(ping)價(jia)其(qi)性(xing)能(neng),如(ru)果(guo)采(cai)用(yong)色(se)譜(pu)柱(zhu)廠(chang)商(shang)提(ti)供(gong)的(de)測(ce)試(shi)條(tiao)件(jian)而(er)結(jie)果(guo)不(bu)合(he)格(ge)時(shi),可(ke)以(yi)要(yao)求(qiu)退(tui)換(huan)貨(huo),以(yi)免(mian)造(zao)成(cheng)後(hou)續(xu)實(shi)驗(yan)的(de)問(wen)題(ti)。更(geng)重(zhong)要(yao)的(de)是(shi),之(zhi)後(hou)使(shi)用(yong)過(guo)程(cheng)中(zhong)色(se)譜(pu)柱(zhu)的(de)性(xing)能(neng)會(hui)發(fa)生(sheng)變(bian)化(hua),當(dang)分(fen)析(xi)結(jie)果(guo)出(chu)現(xian)問(wen)題(ti)時(shi),可(ke)以(yi)用(yong)測(ce)試(shi)樣(yang)測(ce)試(shi)色(se)譜(pu)柱(zhu),並(bing)與(yu)之(zhi)前(qian)結(jie)果(guo)進(jin)行(xing)比(bi)對(dui),這(zhe)樣(yang)有(you)助(zhu)於(yu)問(wen)題(ti)的(de)排(pai)查(zha),以(yi)確(que)定(ding)問(wen)題(ti)是(shi)否(fou)是(shi)因(yin)為(wei)色(se)譜(pu)柱(zhu)造(zao)成(cheng)的(de)。每(mei)次(ci)測(ce)試(shi)結(jie)果(guo)都(dou)應(ying)該(gai)保(bao)存(cun)起(qi)來(lai)作(zuo)為(wei)色(se)譜(pu)柱(zhu)的(de)壽(shou)命(ming)記(ji)錄(lu)。另(ling)外(wai),進(jin)行(xing)一(yi)段(duan)時(shi)間(jian)的(de)試(shi)驗(yan)之(zhi)後(hou),應(ying)該(gai)對(dui)色(se)譜(pu)柱(zhu)進(jin)行(xing)一(yi)次(ci)高(gao)溫(wen)老(lao)化(hua),以(yi)除(chu)去(qu)柱(zhu)內(nei)可(ke)能(neng)殘(can)留(liu)的(de)汙(wu)染(ran)物(wu),然(ran)後(hou)用(yong)測(ce)試(shi)樣(yang)再(zai)次(ci)評(ping)價(jia)色(se)譜(pu)柱(zhu)。
三、及時更換毛細管色譜柱密封墊
石shi墨mo密mi封feng墊dian漏lou氣qi是shi氣qi相xiang色se譜pu常chang見jian的de故gu障zhang之zhi一yi。一yi定ding不bu能neng在zai不bu同tong的de色se譜pu柱zhu上shang重zhong複fu使shi用yong同tong一yi密mi封feng墊dian,即ji使shi同tong一yi根gen柱zhu子zi卸xie下xia重zhong新xin安an裝zhuang時shi,最zui好hao也ye要yao更geng換huan新xin的de密mi封feng墊dian,這zhe樣yang能neng保bao證zheng更geng高gao的de工gong作zuo效xiao率lv。如ru果guo裝zhuang上shang色se譜pu柱zhu後hou發fa現xian漏lou氣qi而er再zai更geng換huan密mi封feng墊dian則ze會hui浪lang費fei更geng多duo的de時shi間jian。即ji使shi舊jiu的de密mi封feng墊dian可ke以yi使shi用yong,也ye需xu要yao比bi新xin的de多duo擰ning緊jin些xie,容rong易yi擰ning斷duan色se譜pu柱zhu。
四、使用純度符合要求的氣體
zaiqiyidingyaoshigaochunjide,yibimianganraofenxihewuransepuzhuhuojianceqi。bijingsepuzhudejiageshigaochundanqihuozhehaiqideshibeiyishang,ruguoyinweishengqianeryongputongqitiweimianyouxiedebuchangshile。jianceqidefuzhuqitizuihaoyeyonggaochunjide。suiranzailingminduyaoqiubugaodeshihoukeyiyongputongqiti,dandaijiahenyoukenengshizaochengjianceqiwuran。
五、定期更換氣體淨化器填料
變色矽膠可以根據顏色來判斷其性能,但分子篩等吸附有機物的淨化器就不好通過觀察來判斷了。所以最好是定期更換,基本以3個月為周期。如果矽膠與分子篩裝在一起,更換矽膠時也應該更換分子篩。
六、使用性能可靠的壓力調節閥
zhuangzaiqitigangpingshangdejianyafayaobaozhengzhiliang。youxiexinfajiuhuicunzailouqideqingkuang,suoyixuyaojingchangjianlou,suishifaxianwenti。ruguobuzhuyiqingzezaochengqitilangfei,zhongzehuichuxiananquanwenti,houguobukanshexiang。
七、定期更換進樣口隔墊
進(jin)樣(yang)口(kou)隔(ge)墊(dian)漏(lou)氣(qi)是(shi)氣(qi)相(xiang)色(se)譜(pu)的(de)常(chang)見(jian)故(gu)障(zhang)之(zhi)一(yi)。有(you)些(xie)儀(yi)器(qi)有(you)自(zi)檢(jian)功(gong)能(neng)可(ke)以(yi)發(fa)現(xian)漏(lou)氣(qi),但(dan)是(shi)有(you)些(xie)微(wei)小(xiao)的(de)漏(lou)氣(qi)問(wen)題(ti)也(ye)是(shi)不(bu)能(neng)保(bao)證(zheng)發(fa)現(xian)的(de),更(geng)有(you)些(xie)儀(yi)器(qi)就(jiu)沒(mei)有(you)自(zi)檢(jian)功(gong)能(neng),漏(lou)氣(qi)就(jiu)更(geng)是(shi)無(wu)從(cong)查(zha)起(qi)了(le)。曾(zeng)經(jing)就(jiu)有(you)GC-MS的初學者一夜之間漏完了一瓶氦氣,而且質譜圖上有一些含矽的離子峰。檢查各個管路、連(lian)接(jie)閥(fa)均(jun)未(wei)發(fa)現(xian)問(wen)題(ti),最(zui)後(hou)才(cai)發(fa)現(xian)是(shi)進(jin)樣(yang)口(kou)隔(ge)墊(dian)使(shi)用(yong)太(tai)久(jiu),中(zhong)間(jian)竟(jing)然(ran)已(yi)經(jing)出(chu)現(xian)了(le)透(tou)光(guang)孔(kong),氦(hai)氣(qi)就(jiu)是(shi)從(cong)這(zhe)裏(li)漏(lou)光(guang)的(de)。此(ci)外(wai),隔(ge)墊(dian)老(lao)化(hua)降(jiang)解(jie)也(ye)會(hui)造(zao)成(cheng)分(fen)析(xi)結(jie)果(guo)的(de)幹(gan)擾(rao),比(bi)如(ru)隔(ge)墊(dian)碎(sui)屑(xie)就(jiu)會(hui)掉(diao)進(jin)汽(qi)化(hua)室(shi)造(zao)成(cheng)鬼(gui)峰(feng)的(de)出(chu)現(xian),就(jiu)如(ru)上(shang)麵(mian)所(suo)說(shuo)的(de)含(han)矽(gui)的(de)離(li)子(zi)峰(feng)。
市售的隔墊一般分為三種類型,普通型(可耐溫至200℃)、優質型(可耐溫至300℃)和高溫型(可耐溫至400℃)。耐高溫或抗老化性能越好、壽命越長,價格當然也就也就越高。選擇時可以根據實際分析條件和需求決定,常規分析實驗室(汽化溫度不超過300℃)xuanzeyouzhixingdegedianjiukeyile,zuogaowenqixiangfenxishizuihaoxuanqugaowenxinggedian。zhiyuduojiugenghuanyicigedianzexuyaokanfenxiyangpindexingzhihefenxitiaojianle。changguijiancexingshiyanshiyibanmeitiangenghuanyige。yigegediandelianxushiyongshijianzuihaobuyaochaoguoyizhou,dangranduiyujingyanfengfude“老司機”是可以憑經驗、手感之類的判斷是否需要更換的。
八、及時清洗注射器
幹gan淨jing的de注zhu射she器qi能neng避bi免mian樣yang品pin記ji憶yi效xiao應ying的de幹gan擾rao。更geng換huan樣yang品pin時shi需xu要yao清qing洗xi,用yong同tong一yi樣yang品pin多duo次ci進jin樣yang時shi也ye要yao用yong樣yang品pin本ben身shen清qing洗xi注zhu射she器qi。一yi支zhi注zhu射she器qi暫zan時shi不bu用yong時shi(比如放假時),更geng要yao徹che底di清qing洗xi,否fou則ze殘can留liu在zai其qi中zhong的de樣yang品pin可ke能neng將jiang針zhen芯xin粘zhan住zhu,造zao成cheng注zhu射she器qi的de報bao廢fei。使shi用yong自zi動dong進jin樣yang器qi時shi也ye要yao注zhu意yi此ci問wen題ti,最zui好hao經jing常chang更geng換huan和he清qing洗xi注zhu射she器qi。
九、定期檢查並清洗進樣口襯管
儀器長期使用後會發現襯管內積存有焦油狀物質,這是樣品中的不揮發成分造成的。此外還會有顆粒狀物質積存(隔墊碎屑、樣品中的固體物質),zhexiedouhuiganraofenxidezhengchangjinxing。yinciyaodingqijianzha,jishiqingxi。zhidezhuyideshi,xianzaidechenguanzhongyijingtianchongleyixiejingguiwanhuachuliguodeshiyingbolimao,jikeyitigaoyangpindeqihuaxiaolv,younengfangzhigediansuixiejinrusepuzhuzaochengdusai,yekeyigenjushijixuyaogenghuanhuozhezengjianbolimao,yiqidadaogenghaodexiaoguo。
十、保留完整的儀器使用記錄
儀器使用記錄是儀器的履曆,應逐日記錄,包括操作者、分析樣品、條件、儀yi器qi工gong作zuo狀zhuang態tai等deng,一yi旦dan儀yi器qi出chu現xian問wen題ti,這zhe是shi查zha找zhao原yuan因yin的de重zhong要yao資zi料liao。一yi些xie研yan究jiu性xing的de實shi驗yan室shi往wang往wang不bu太tai注zhu意yi儀yi器qi使shi用yong記ji錄lu的de填tian寫xie,這zhe是shi需xu要yao注zhu意yi的de問wen題ti。
十一、更換零部件要逐一進行
維wei修xiu儀yi器qi時shi,不bu要yao一yi次ci更geng換huan多duo個ge部bu件jian,這zhe要yao容rong易yi造zao成cheng故gu障zhang原yuan因yin的de判pan斷duan失shi誤wu。應ying該gai一yi次ci更geng換huan一yi個ge部bu件jian,經jing測ce試shi後hou再zai更geng換huan另ling一yi個ge。這zhe樣yang既ji可ke以yi更geng準zhun確que的de判pan斷duan故gu障zhang原yuan因yin,也ye能neng避bi免mian不bu必bi要yao的de開kai支zhi。
文章(文字)來源:網絡
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