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
sepuzhuxingnengshibaozhengfenxijieguodeguanjian。xingouzhidesepuzhu,shouxianyaoyongceshiyanglaipingjiaqixingneng,ruguocaiyongsepuzhuchangshangtigongdeceshitiaojianerjieguobuhegeshi,keyiyaoqiutuihuanhuo,yimianzaochenghouxushiyandewenti。gengzhongyaodeshi,zhihoushiyongguochengzhongsepuzhudexingnenghuifashengbianhua,dangfenxijieguochuxianwentishi,keyiyongceshiyangceshisepuzhu,bingyuzhiqianjieguojinxingbidui,zheyangyouzhuyuwentidepaizha,yiquedingwentishifoushiyinweisepuzhuzaochengde。meiciceshijieguodouyinggaibaocunqilaizuoweisepuzhudeshoumingjilu。lingwai,jinxingyiduanshijiandeshiyanzhihou,yinggaiduisepuzhujinxingyicigaowenlaohua,yichuquzhuneikenengcanliudewuranwu,ranhouyongceshiyangzaicipingjiasepuzhu。
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
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、lianjiefajunweifaxianwenti,zuihoucaifaxianshijinyangkougedianshiyongtaijiu,zhongjianjingranyijingchuxianletouguangkong,haiqijiushicongzhelilouguangde。ciwai,gedianlaohuajiangjieyehuizaochengfenxijieguodeganrao,birugediansuixiejiuhuidiaojinqihuashizaochengguifengdechuxian,jiurushangmiansuoshuodehanguidelizifeng。
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℃)選xuan擇ze優you質zhi型xing的de隔ge墊dian就jiu可ke以yi了le,做zuo高gao溫wen氣qi相xiang分fen析xi時shi最zui好hao選xuan取qu高gao溫wen型xing隔ge墊dian。至zhi於yu多duo久jiu更geng換huan一yi次ci隔ge墊dian則ze需xu要yao看kan分fen析xi樣yang品pin的de性xing質zhi和he分fen析xi條tiao件jian了le。常chang規gui檢jian測ce性xing實shi驗yan室shi一yi般ban每mei天tian更geng換huan一yi個ge。一yi個ge隔ge墊dian的de連lian續xu使shi用yong時shi間jian最zui好hao不bu要yao超chao過guo一yi周zhou,當dang然ran對dui於yu經jing驗yan豐feng富fu的de“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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