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
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、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),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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