一、按儀器使用說明書的規程操作
這(zhe)一(yi)點(dian)主(zhu)要(yao)是(shi)針(zhen)對(dui)新(xin)購(gou)置(zhi)和(he)安(an)裝(zhuang)的(de)儀(yi)器(qi),不(bu)僅(jin)要(yao)清(qing)點(dian)零(ling)部(bu)件(jian)與(yu)備(bei)件(jian)是(shi)否(fou)齊(qi)全(quan),更(geng)要(yao)檢(jian)查(zha)說(shuo)明(ming)書(shu)是(shi)否(fou)齊(qi)全(quan),一(yi)定(ding)要(yao)妥(tuo)善(shan)保(bao)管(guan)這(zhe)些(xie)資(zi)料(liao),以(yi)備(bei)日(ri)後(hou)查(zha)閱(yue)。在(zai)獨(du)立(li)操(cao)作(zuo)儀(yi)器(qi)前(qian),一(yi)定(ding)要(yao)認(ren)真(zhen)閱(yue)讀(du)有(you)關(guan)使(shi)用(yong)說(shuo)明(ming)書(shu),並(bing)且(qie)嚴(yan)格(ge)按(an)規(gui)程(cheng)操(cao)作(zuo)。這(zhe)是(shi)做(zuo)好(hao)儀(yi)器(qi)分(fen)析(xi)的(de)前(qian)提(ti),而(er)且(qie)當(dang)儀(yi)器(qi)出(chu)現(xian)問(wen)題(ti)時(shi)也(ye)方(fang)便(bian)與(yu)廠(chang)商(shang)溝(gou)通(tong)。特(te)別(bie)是(shi)還(hai)在(zai)保(bao)修(xiu)期(qi)的(de)儀(yi)器(qi),如(ru)果(guo)因(yin)為(wei)操(cao)作(zuo)不(bu)當(dang)產(chan)生(sheng)的(de)故(gu)障(zhang)或(huo)者(zhe)損(sun)壞(huai),廠(chang)商(shang)可(ke)是(shi)不(bu)會(hui)免(mian)費(fei)維(wei)修(xiu)的(de),有(you)時(shi)這(zhe)筆(bi)費(fei)用(yong)還(hai)是(shi)相(xiang)當(dang)客(ke)觀(guan)的(de)。
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
shimomifengdianlouqishiqixiangsepuchangjiandeguzhangzhiyi。yidingbunengzaibutongdesepuzhushangzhongfushiyongtongyimifengdian,jishitongyigenzhuzixiexiazhongxinanzhuangshi,zuihaoyeyaogenghuanxindemifengdian,zheyangnengbaozhenggenggaodegongzuoxiaolv。ruguozhuangshangsepuzhuhoufaxianlouqierzaigenghuanmifengdianzehuilangfeigengduodeshijian。jishijiudemifengdiankeyishiyong,yexuyaobixindeduoningjinxie,rongyiningduansepuzhu。
四、使用純度符合要求的氣體
載(zai)氣(qi)一(yi)定(ding)要(yao)是(shi)高(gao)純(chun)級(ji)的(de),以(yi)避(bi)免(mian)幹(gan)擾(rao)分(fen)析(xi)和(he)汙(wu)染(ran)色(se)譜(pu)柱(zhu)或(huo)檢(jian)測(ce)器(qi)。畢(bi)竟(jing)色(se)譜(pu)柱(zhu)的(de)價(jia)格(ge)是(shi)高(gao)純(chun)氮(dan)氣(qi)或(huo)者(zhe)氦(hai)氣(qi)的(de)十(shi)倍(bei)以(yi)上(shang),如(ru)果(guo)因(yin)為(wei)省(sheng)錢(qian)而(er)用(yong)普(pu)通(tong)氣(qi)體(ti)未(wei)免(mian)有(you)些(xie)得(de)不(bu)償(chang)失(shi)了(le)。檢(jian)測(ce)器(qi)的(de)輔(fu)助(zhu)氣(qi)體(ti)最(zui)好(hao)也(ye)用(yong)高(gao)純(chun)級(ji)的(de)。雖(sui)然(ran)在(zai)靈(ling)敏(min)度(du)要(yao)求(qiu)不(bu)高(gao)的(de)時(shi)候(hou)可(ke)以(yi)用(yong)普(pu)通(tong)氣(qi)體(ti),但(dan)代(dai)價(jia)很(hen)有(you)可(ke)能(neng)是(shi)造(zao)成(cheng)檢(jian)測(ce)器(qi)汙(wu)染(ran)。
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youGC-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),這zhe些xie都dou會hui幹gan擾rao分fen析xi的de正zheng常chang進jin行xing。因yin此ci要yao定ding期qi檢jian查zha,及ji時shi清qing洗xi。值zhi得de注zhu意yi的de是shi,現xian在zai的de襯chen管guan中zhong已yi經jing填tian充chong了le一yi些xie經jing矽gui烷wan化hua處chu理li過guo的de石shi英ying玻bo璃li毛mao,既ji可ke以yi提ti高gao樣yang品pin的de汽qi化hua效xiao率lv,又you能neng防fang止zhi隔ge墊dian碎sui屑xie進jin入ru色se譜pu柱zhu造zao成cheng堵du塞sai,也ye可ke以yi根gen據ju實shi際ji需xu要yao更geng換huan或huo者zhe增zeng減jian玻bo璃li毛mao,以yi期qi達da到dao更geng好hao的de效xiao果guo。
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。
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