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
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、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
ganjingdezhusheqinengbimianyangpinjiyixiaoyingdeganrao。genghuanyangpinshixuyaoqingxi,yongtongyiyangpinduocijinyangshiyeyaoyongyangpinbenshenqingxizhusheqi。yizhizhusheqizanshibuyongshi(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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