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
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
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(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℃)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),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),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、yiqigongzuozhuangtaideng,yidanyiqichuxianwenti,zheshizhazhaoyuanyindezhongyaoziliao。yixieyanjiuxingdeshiyanshiwangwangbutaizhuyiyiqishiyongjiludetianxie,zheshixuyaozhuyidewenti。
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)。
手機版








