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
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
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
jinyangkougedianlouqishiqixiangsepudechangjianguzhangzhiyi。youxieyiqiyouzijiangongnengkeyifaxianlouqi,danshiyouxieweixiaodelouqiwentiyeshibunengbaozhengfaxiande,gengyouxieyiqijiumeiyouzijiangongneng,louqijiugengshiwucongzhaqile。zengjingjiuyouGC-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、yiqigongzuozhuangtaideng,yidanyiqichuxianwenti,zheshizhazhaoyuanyindezhongyaoziliao。yixieyanjiuxingdeshiyanshiwangwangbutaizhuyiyiqishiyongjiludetianxie,zheshixuyaozhuyidewenti。
十一、更換零部件要逐一進行
weixiuyiqishi,buyaoyicigenghuanduogebujian,zheyaorongyizaochengguzhangyuanyindepanduanshiwu。yinggaiyicigenghuanyigebujian,jingceshihouzaigenghuanlingyige。zheyangjikeyigengzhunquedepanduanguzhangyuanyin,yenengbimianbubiyaodekaizhi。
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