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
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
裝(zhuang)在(zai)氣(qi)體(ti)鋼(gang)瓶(ping)上(shang)的(de)減(jian)壓(ya)閥(fa)要(yao)保(bao)證(zheng)質(zhi)量(liang)。有(you)些(xie)新(xin)閥(fa)就(jiu)會(hui)存(cun)在(zai)漏(lou)氣(qi)的(de)情(qing)況(kuang),所(suo)以(yi)需(xu)要(yao)經(jing)常(chang)檢(jian)漏(lou),隨(sui)時(shi)發(fa)現(xian)問(wen)題(ti)。如(ru)果(guo)不(bu)注(zhu)意(yi)輕(qing)則(ze)造(zao)成(cheng)氣(qi)體(ti)浪(lang)費(fei),重(zhong)則(ze)會(hui)出(chu)現(xian)安(an)全(quan)問(wen)題(ti),後(hou)果(guo)不(bu)堪(kan)設(she)想(xiang)。
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),gengyaochediqingxi,fouzecanliuzaiqizhongdeyangpinkenengjiangzhenxinzhanzhu,zaochengzhusheqidebaofei。shiyongzidongjinyangqishiyeyaozhuyiciwenti,zuihaojingchanggenghuanheqingxizhusheqi。
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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