1、儀器一定要有良好的使用環境
denglizitiguangpuyuqitadaxingjingmiyiqiyiyang,xuyaozaiyidingdehuanjingxiayunxing,shiquzhexietiaojian,bujinyiqideshiyongxiaoguobuhao,erqiegaibianyiqidejiancexingneng,shenzhizaochengsunhuai,suoduanshouming。genjuguangxueyiqidetedian,duihuanjingwenduheshiduyouyidingyaoqiu。 如果溫度變化太大,光學元件受溫度變化的影響就會產生譜線漂移,造成測定數據不穩定,一般室溫要求維持在70~75攝氏度間的一個固定溫度,溫度變化應小 於±1sheshidu。erhuanjingshiduguoda,guangxueyuanjian,tebieshiguangzharongyishouchaosunhuaihuoxingnengjiangdi。dianzixitong,youqishiyinshuadianlubanjigaoyadianyuanshangdeyuanjianrongyishouchaoshaohuai。shiduduigaopinfa 生sheng器qi的de影ying響xiang也ye十shi分fen重zhong要yao,濕shi度du過guo大da,輕qing則ze等deng離li子zi體ti不bu容rong易yi點dian燃ran,重zhong則ze高gao壓ya電dian源yuan及ji高gao壓ya電dian路lu放fang電dian擊ji毀hui元yuan件jian,如ru功gong率lv管guan隔ge直zhi陶tao瓷ci電dian容rong擊ji穿chuan,輸shu出chu電dian路lu阻zu抗kang匹pi配pei、網絡中的 可變電容放電等,以至損壞高頻發生器。一般室內濕度應小於百分之70,最好控製在百分之45~60之間,應有空氣淨化裝置。過去由於基建施工,我們的環境 tiaojianhencha,shenzhiyiqishiduocibeishuiyan,shouchaojishiwenbianhuaguoda,yiqibushidingweikunnanjiushijingchangfashengguzhang。bandaoxindeyiqishihoutiaojiangaishanle,yiqiyunxingjiuzhengchangduole。
2、儀器的供電線路要符合儀器的要求
為 了保證ICP儀(yi)的(de)安(an)全(quan)運(yun)行(xing),供(gong)電(dian)線(xian)路(lu)必(bi)須(xu)要(yao)有(you)足(zu)夠(gou)大(da)的(de)容(rong)量(liang),否(fou)則(ze)儀(yi)器(qi)運(yun)行(xing)時(shi)線(xian)路(lu)的(de)電(dian)壓(ya)降(jiang)過(guo)大(da),影(ying)響(xiang)儀(yi)器(qi)壽(shou)命(ming)。作(zuo)為(wei)一(yi)台(tai)精(jing)密(mi)測(ce)量(liang)儀(yi)器(qi),它(ta)還(hai)需(xu)要(yao)有(you)相(xiang)對(dui)穩(wen)定(ding)的(de) 電源,供電電壓的變化一般不超過+百分之5,如超過這個範圍,需要使用自動調壓器或磁飽和穩壓器,不能使用電子穩壓器,由於電子穩壓器在電壓高時產生削 波,造成電脈衝,影響電子計算機、微處理器及相敏放大器的工作,引起誤動作。連續正弦波電源才能保證這些電子電路的正常工作,儀器供電線路最好單獨從供電 變bian壓ya器qi的de配pei電dian盤pan上shang得de到dao,盡jin量liang不bu與yu大da電dian機ji,大da的de通tong風feng機ji,空kong調tiao機ji,馬ma弗fu爐lu等deng大da的de用yong電dian設she備bei共gong用yong一yi條tiao供gong電dian線xian路lu,以yi免mian在zai這zhe些xie用yong電dian設she備bei起qi動dong時shi,供gong電dian線xian路lu的de電dian壓ya大da幅fu度du的de波bo動dong,造zao成cheng儀yi器qi工gong作zuo不bu穩wen定ding。允yun許xu電dian流liu大da於yu30安培的儀器要單獨接地。一般光譜儀地線電阻要小於5歐姆,計算機地線電阻要小於0.25歐姆(ASTM)標準,以防相互幹擾。
在 yiqideshiyongzhong,yingjingchangzhuyidianyuandebianhua,bunengchangqizaiguoyahuoqianyaxiagongzuo,genjuziliaojieshao,dangyiqizaiguoyaxiagongzuohuizaochenggaopofashengqigonglvdaguandengsiguodudezhengfahelaohua,dian 子管的壽命將會大大的縮短(是正常壽命的五分之~一六分之一)。如果在欠壓下工作,電子管燈絲溫度過低,電子發射不好,也容易造成電子發射材料過早老化,同樣也縮短電子管的壽命;儀yi器qi運yun行xing中zhong供gong電dian電dian壓ya的de較jiao大da波bo動dong同tong樣yang也ye會hui造zao成cheng高gao頻pin發fa生sheng器qi輸shu出chu功gong率lv的de不bu穩wen定ding,對dui測ce定ding結jie果guo的de好hao壞huai影ying響xiang極ji大da,因yin此ci,應ying當dang注zhu意yi供gong電dian電dian源yuan的de質zhi量。
3、防塵
國內一般實驗室都不具備防塵、過濾塵埃的設施,當實驗室內需要采用排風機,排除儀器的熱量及工作時產生的有毒氣體時,實驗 室shi與yu外wai部bu就jiu形xing成cheng壓ya力li差cha,實shi驗yan室shi產chan生sheng負fu壓ya,室shi外wai含han有you大da量liang灰hui塵chen的de空kong氣qi從cong門men窗chuang的de縫feng隙xi中zhong流liu入ru室shi內nei,大da量liang積ji聚ju在zai儀yi器qi的de各ge個ge部bu位wei上shang,容rong易yi造zao成cheng高gao壓ya元yuan件jian或huo接jie頭tou打da火huo,電dian路lu 板及接線、插座等短路、漏電等各種各樣的故障,因此,需要經常進行除塵。特別是計算機、電子控製電路、高頻發生器、顯示器、打印機、磁盤驅動器等,定期拆 卸或打開,用小毛刷清掃,並同時使用吸塵器將各個部分的積塵吸除。對光電倍增管負高壓電源線、及計算機顯示器的高壓線及接頭,還要用紗布沾上少許無水酒精 小(xiao)心(xin)的(de)抹(mo)除(chu)積(ji)炭(tan)和(he)灰(hui)塵(chen)。磁(ci)盤(pan)驅(qu)動(dong)器(qi)及(ji)打(da)印(yin)機(ji)清(qing)出(chu)灰(hui)塵(chen)之(zhi)後(hou),要(yao)在(zai)機(ji)械(xie)活(huo)動(dong)部(bu)件(jian)滴(di)加(jia)少(shao)許(xu)儀(yi)表(biao)油(you)。打(da)印(yin)機(ji)的(de)打(da)印(yin)頭(tou)還(hai)要(yao)拆(chai)下(xia),用(yong)軟(ruan)毛(mao)刷(shua)刷(shua)掃(sao),並(bing)用(yong)絨(rong)布(bu)抹(mo)淨(jing),防(fang)止(zhi)針(zhen) 孔(kong)被(bei)紙(zhi)屑(xie)堵(du)塞(sai),然(ran)後(hou)按(an)照(zhao)說(shuo)明(ming)書(shu)調(tiao)整(zheng)一(yi)定(ding)的(de)打(da)印(yin)壓(ya)力(li)。對(dui)於(yu)儀(yi)器(qi)除(chu)塵(chen),一(yi)般(ban)由(you)電(dian)子(zi),儀(yi)修(xiu)或(huo)計(ji)算(suan)機(ji)的(de)專(zhuan)業(ye)人(ren)員(yuan)幫(bang)助(zhu),儀(yi)器(qi)使(shi)用(yong)或(huo)管(guan)理(li)人(ren)員(yuan)如(ru)不(bu)懂(dong)電(dian)子(zi)知(zhi)識(shi),不(bu)了(le)解(jie)儀(yi) 器結構,不要輕易去動,以免發生意外,除塵應事先停機並關掉供電電源下進行。
4、對氣體控製係統的維護保養
ICP的氣體控製係統是否穩定 正常地運行,直接影響到儀器測定數據的好壞,如果氣路中有水珠、機械雜物雜屑等都會造成氣流不穩定,因此,對氣體控製係統要經常進行檢查和維護。首先要做 氣qi體ti試shi驗yan,打da開kai氣qi體ti控kong製zhi係xi統tong的de電dian源yuan開kai關guan,使shi電dian磁ci閥fa處chu於yu工gong作zuo狀zhuang態tai,然ran後hou開kai啟qi氣qi瓶ping及ji減jian壓ya閥fa,使shi氣qi體ti壓ya力li指zhi示shi在zai額e定ding值zhi上shang,然ran後hou關guan閉bi氣qi瓶ping,觀guan察cha減jian壓ya閥fa上shang的de壓ya力li表biao指zhi 針(zhen),應(ying)在(zai)幾(ji)個(ge)小(xiao)時(shi)內(nei)沒(mei)有(you)下(xia)降(jiang)或(huo)下(xia)降(jiang)很(hen)少(shao),否(fou)則(ze)氣(qi)路(lu)中(zhong)有(you)漏(lou)氣(qi)現(xian)象(xiang),需(xu)要(yao)檢(jian)查(zha)和(he)排(pai)除(chu)。第(di)二(er),由(you)於(yu)氬(ya)氣(qi)中(zhong)常(chang)夾(jia)雜(za)有(you)水(shui)分(fen)和(he)其(qi)它(ta)雜(za)質(zhi),管(guan)道(dao)和(he)接(jie)頭(tou)中(zhong)也(ye)會(hui)有(you)一(yi)些(xie)機(ji)械(xie)碎(sui) xietuoluo,zaochengqilubuchangtong。yinci,xuyaodingqijinxingqingli,baxiamouxiequduanguandao,ranhoudakaiqiping,duancudifangyiduanshijiandeqiti,jiangguandaozhongdeshuizhu,chenlidengchuichu。zaianzhuangqitiguan 道,特別是將載氣管路接在霧化器上時,要注意不要讓管子彎曲太厲害,否則載氣流量不穩而造成脈動,影響測定。
5、對進樣係統及炬管的維護
wuhuaqishijinyangxitongzhongzuijingmi,zuiguanjiandebufen,xuyaohenhaodeweihuheshiyong。yaodingqideqingli,tebieshicedinggaoyanrongyezhihou,wuhuaqidedingbu,juguanpenzuihuijiyouyanfen,zaochengqirongjiaotongdaobuchang,changchangfanyingchulaideshicedingqiangduxiajiang,yiqifanshegonglvshenggaodeng。juguanshangjichenhuojitandouhuiyingxiangdianrandenglizitiyanjuhebaochiwending,yeyingxiangfanshegonglv,yinci,yaodingqiyongsuanxi,shuixi,zuihou,yongwushuiyichunxibingchuigan,jingchangbaochijinyangxitongjijuguandeqingjie。
6、使用中盡量減少開停機的次數
開jicedingqian,bixuzuohaoanpai,shixianbiaohaogexiangzhunbeigongzuo,qiejizaitongyiduanshijianlikaikaitingting,yiqipinfankaiqirongyizaochengsunhuai,zheshiyinweiyiqizaimeicikaiqideshihou,shunshidianliudadagao 於yu運yun行xing正zheng常chang時shi的de電dian流liu,瞬shun時shi的de脈mai衝chong衝chong擊ji,容rong易yi造zao成cheng功gong率lv管guan燈deng絲si斷duan絲si,碰peng極ji短duan路lu及ji過guo早zao老lao化hua等deng,因yin此ci使shi用yong中zhong需xu要yao倍bei加jia注zhu意yi,一yi旦dan開kai機ji就jiu一yi氣qi嗬he成cheng,把ba要yao做zuo的de事shi做zuo完wan,不bu要中途關停機。
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