技術文章
Technical articles我們(men)都(dou)知道氣相(xiang)色(se)(se)譜(pu)儀對(dui)檢(jian)(jian)(jian)測(ce)(ce)(ce)器都(dou)是有要(yao)求的(de)(de)，大氣色(se)(se)譜(pu)儀也不例(li)外，其檢(jian)(jian)(jian)測(ce)(ce)(ce)器必(bi)須(xu)滿足靈(ling)敏(min)度高、響(xiang)應快、適應范(fan)(fan)圍廣、測(ce)(ce)(ce)量準確、穩定性(xing)好等特點(dian)，本文就大氣色(se)(se)譜(pu)儀的(de)(de)主要(yao)指標(biao)進(jin)行介紹(shao)，其主要(yao)指標(biao)有線(xian)(xian)性(xing)范(fan)(fan)圍、檢(jian)(jian)(jian)測(ce)(ce)(ce)限和靈(ling)敏(min)度。相(xiang)對(dui)響(xiang)應值；線(xian)(xian)性(xing)范(fan)(fan)圍都(dou)是定量中十分(fen)重要(yao)的(de)(de)參數(shu)。相(xiang)對(dui)響(xiang)應值：組分(fen)通過檢(jian)(jian)(jian)測(ce)(ce)(ce)器即有信(xin)號產生，此(ci)信(xin)號稱(cheng)檢(jian)(jian)(jian)測(ce)(ce)(ce)器的(de)(de)響(xiang)應，信(xin)號大小稱(cheng)響(xiang)應值。線(xian)(xian)性(xing)范(fan)(fan)圍：準確的(de)(de)定量分(fen)析取(qu)決(jue)于(yu)檢(jian)(jian)(jian)測(ce)(ce)(ce)器的(de)(de)線(xian)(xian)性(xing)范(fan)(fan)圍。線(xian)(xian)性(xing)范(fan)(fan)圍指進(jin)入檢(jian)(jian)(jian)測(ce)(ce)(ce)器組分(fen)量與其響(xiang)應值保持線(xian)(xian)性(xing)關系，或是靈(ling)敏(min)度保持恒定所覆蓋(gai)的(de)(de)區(qu)間，稱(cheng)線(xian)(xian)性(xing)范(fan)(fan)圍。靈(ling)敏(min)...
分(fen)析(xi)(xi)專用(yong)(yong)色譜(pu)(pu)儀(yi)的(de)(de)故(gu)(gu)障(zhang)(zhang)排(pai)除方法有很多，我們(men)(men)在之前(qian)(qian)文章中(zhong)也有介紹(shao)(shao)過有些(xie)方法，本文將在介紹(shao)(shao)一些(xie)不同于以(yi)往的(de)(de)方法，我們(men)(men)本文主要按氣(qi)路(lu)部分(fen)來(lai)介紹(shao)(shao)。分(fen)析(xi)(xi)專用(yong)(yong)色譜(pu)(pu)儀(yi)故(gu)(gu)障(zhang)(zhang)按氣(qi)路(lu)部分(fen)來(lai)說容易發(fa)生(sheng)故(gu)(gu)障(zhang)(zhang)的(de)(de)現象為：氣(qi)路(lu)堵(du)塞與污染故(gu)(gu)障(zhang)(zhang)、氣(qi)路(lu)泄漏(lou)(lou)故(gu)(gu)障(zhang)(zhang)、流量(liang)調節(jie)故(gu)(gu)障(zhang)(zhang)。針對上面(mian)三大(da)故(gu)(gu)障(zhang)(zhang)，我們(men)(men)下面(mian)將列舉多種方法來(lai)排(pai)除，直(zhi)到(dao)找到(dao)故(gu)(gu)障(zhang)(zhang)并解決，下面(mian)我們(men)(men)來(lai)介紹(shao)(shao)一下排(pai)除方法。分(fen)析(xi)(xi)專用(yong)(yong)色譜(pu)(pu)儀(yi)故(gu)(gu)障(zhang)(zhang)排(pai)除：首(shou)先我們(men)(men)可(ke)以(yi)直(zhi)觀(guan)檢查是否有漏(lou)(lou)氣(qi)聲(sheng)，當我們(men)(men)聽到(dao)有漏(lou)(lou)氣(qi)聲(sheng)可(ke)以(yi)根(gen)據聲(sheng)源來(lai)定(ding)位；可(ke)以(yi)觀(guan)察(cha)柱前(qian)(qian)壓指數表(biao)數值來(lai)判斷(duan)氣(qi)源引起的(de)(de)故(gu)(gu)障(zhang)(zhang)；可(ke)以(yi)...
化(hua)工氣(qi)相(xiang)(xiang)色(se)譜(pu)儀(yi)被廣泛應用(yong)(yong)(yong)(yong)于科研(yan)、教學、化(hua)工等等行業，每個單(dan)位幾乎(hu)都有專業的(de)氣(qi)相(xiang)(xiang)色(se)譜(pu)儀(yi)操作(zuo)員，其中(zhong)難免有一些新(xin)手(shou)，本文化(hua)工氣(qi)相(xiang)(xiang)色(se)譜(pu)儀(yi)廠家(jia)(jia)為(wei)廣大(da)新(xin)手(shou)分(fen)享一篇關于載氣(qi)選擇的(de)干貨，我(wo)們(men)作(zuo)為(wei)一名實驗室分(fen)析新(xin)手(shou)一定要(yao)掌握它(ta)，熟知每一種載氣(qi)的(de)特點以及適(shi)用(yong)(yong)(yong)(yong)情況。下(xia)面我(wo)們(men)就給大(da)家(jia)(jia)介紹四(si)種常用(yong)(yong)(yong)(yong)載氣(qi)的(de)特點以及針對(dui)(dui)(dui)的(de)適(shi)用(yong)(yong)(yong)(yong)對(dui)(dui)(dui)象(xiang)。氣(qi)相(xiang)(xiang)色(se)譜(pu)儀(yi)常用(yong)(yong)(yong)(yong)的(de)四(si)中(zhong)載氣(qi)有氮氣(qi)、氫(qing)氣(qi)、氬氣(qi)、氦氣(qi)。下(xia)面我(wo)們(men)分(fen)別來介紹一下(xia)。N2就是我(wo)們(men)所說的(de)氮氣(qi)，是氣(qi)相(xiang)(xiang)色(se)譜(pu)儀(yi)常用(yong)(yong)(yong)(yong)的(de)載氣(qi)，為(wei)什么(me)呢(ni)？因為(wei)其擴散(san)系數小(xiao)、相(xiang)(xiang)對(dui)(dui)(dui)分(fen)子質量較大(da)、柱效相(xiang)(xiang)對(dui)(dui)(dui)...
經(jing)常(chang)操作(zuo)使用氣(qi)相色(se)譜(pu)儀(yi)(yi)的(de)朋友對于(yu)其構造(zao)可能了如指(zhi)掌，即(ji)使遇到一(yi)些故障都(dou)能快速的(de)排查和解(jie)決。同(tong)樣一(yi)些不懂行的(de)朋友但(dan)由于(yu)業務的(de)發展需要(yao)(yao)購買氣(qi)相色(se)譜(pu)儀(yi)(yi)就(jiu)得先了解(jie)一(yi)下(xia)(xia)儀(yi)(yi)器本身了。本文(wen)就(jiu)為了幫助那些不了解(jie)儀(yi)(yi)器的(de)朋友，向(xiang)大家(jia)簡要(yao)(yao)的(de)介(jie)紹一(yi)下(xia)(xia)儀(yi)(yi)器構造(zao)，無論是購買還(huan)是以后的(de)使用都(dou)會有一(yi)定的(de)幫助。我們今天就(jiu)拿(na)氣(qi)相色(se)譜(pu)儀(yi)(yi)來進行構造(zao)解(jie)析。首(shou)先我們要(yao)(yao)知道氣(qi)相色(se)譜(pu)儀(yi)(yi)的(de)幾大系(xi)統(tong)(tong)有哪些。載氣(qi)系(xi)統(tong)(tong)、進樣系(xi)統(tong)(tong)、分離系(xi)統(tong)(tong)、檢測系(xi)統(tong)(tong)、信號記錄(lu)或微機(ji)處(chu)理(li)系(xi)統(tong)(tong)、溫度控制系(xi)統(tong)(tong)，下(xia)(xia)面我們看(kan)下(xia)(xia)這幾大系(xi)統(tong)(tong)具體的(de)作(zuo)用。分離系(xi)統(tong)(tong)的(de)...
純(chun)水(shui)機(ji)采用PP棉，活性炭及(ji)RO膜等(deng)濾芯(xin)(xin)，五級或五級以上過(guo)(guo)濾，其中最核心是(shi)(shi)RO膜，RO膜是(shi)(shi)目前過(guo)(guo)濾精(jing)度最高的濾芯(xin)(xin)，過(guo)(guo)慮(lv)自來水(shui)中所有(you)(you)物質，制(zhi)出的水(shui)為純(chun)凈水(shui)，可(ke)以直接(jie)生(sheng)飲。常見配件故障以及(ji)解(jie)決辦(ban)法：一、高壓(ya)泵不啟(qi)動，無(wu)法造(zao)水(shui)檢查(cha)(cha)(cha)是(shi)(shi)否停電、插頭是(shi)(shi)否插好；檢查(cha)(cha)(cha)低壓(ya)開(kai)關(guan)是(shi)(shi)否失(shi)靈，不能接(jie)通電源；檢查(cha)(cha)(cha)高壓(ya)開(kai)關(guan)或水(shui)位控制(zhi)器是(shi)(shi)否失(shi)靈；檢查(cha)(cha)(cha)變壓(ya)器、保(bao)險絲是(shi)(shi)否燒毀(hui)。二、高壓(ya)泵正常工作但(dan)無(wu)法造(zao)水(shui)高壓(ya)泵失(shi)壓(ya)；前置濾芯(xin)(xin)堵塞(純(chun)水(shui)廢水(shui)均無(wu)或廢水(shui)小)；逆止(zhi)閥(fa)堵塞(有(you)(you)廢水(shui)，無(wu)純(chun)水(shui))；電磁閥(fa)失(shi)靈，不能有(you)(you)效開(kai)啟(qi);R...
空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)發(fa)(fa)(fa)生(sheng)的工作(zuo)流程為環(huan)境空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)經(jing)壓(ya)(ya)縮(suo)機(ji)壓(ya)(ya)縮(suo)進入儲(chu)氣(qi)(qi)(qi)(qi)(qi)罐，再由儲(chu)氣(qi)(qi)(qi)(qi)(qi)罐經(jing)過(guo)凈(jing)化器(qi)(qi)之(zhi)后，通過(guo)穩壓(ya)(ya)閥輸入到氣(qi)(qi)(qi)(qi)(qi)相(xiang)色譜儀中。從名(ming)稱(cheng)上(shang)而(er)言，無(wu)論稱(cheng)之(zhi)為空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)發(fa)(fa)(fa)生(sheng)器(qi)(qi)、空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)源、空(kong)(kong)(kong)(kong)(kong)壓(ya)(ya)機(ji)或者空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)縮(suo)機(ji)，其(qi)本(ben)質類似，都(dou)是通過(guo)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)壓(ya)(ya)縮(suo)機(ji)來提供(gong)達到一定壓(ya)(ya)力的氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)。介(jie)于(yu)實驗(yan)室氣(qi)(qi)(qi)(qi)(qi)相(xiang)色譜儀使用空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)的要求(qiu)，空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)發(fa)(fa)(fa)生(sheng)器(qi)(qi)會在(zai)壓(ya)(ya)縮(suo)機(ji)后安裝(zhuang)(zhuang)儲(chu)氣(qi)(qi)(qi)(qi)(qi)罐、凈(jing)化裝(zhuang)(zhuang)置等(deng)，從而(er)使提供(gong)的空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)達到使用的要求(qiu)。空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)發(fa)(fa)(fa)生(sheng)器(qi)(qi)在(zai)使用過(guo)程中應該注意哪些問題1、為了確保氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)純(chun)度，空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)發(fa)(fa)(fa)生(sheng)器(qi)(qi)每工作(zuo)1000小時(shi)，需(xu)要更(geng)換活(huo)性炭一次(活(huo)性碳為20-40目，鉛筆...
經常操作使(shi)用GC氣相色譜(pu)(pu)(pu)儀(yi)(yi)的(de)(de)(de)朋友對于(yu)其構造(zao)可能(neng)了(le)如指掌，即使(shi)遇到一(yi)(yi)(yi)些(xie)故(gu)障都能(neng)快(kuai)速的(de)(de)(de)排查和(he)解(jie)(jie)決。同(tong)樣一(yi)(yi)(yi)些(xie)不懂行的(de)(de)(de)朋友但(dan)由于(yu)業(ye)務的(de)(de)(de)發展需要(yao)購買氣相色譜(pu)(pu)(pu)儀(yi)(yi)就(jiu)得先了(le)解(jie)(jie)一(yi)(yi)(yi)下(xia)(xia)(xia)儀(yi)(yi)器(qi)本(ben)身了(le)。本(ben)文(wen)就(jiu)為了(le)幫助那(nei)些(xie)不要(yao)了(le)解(jie)(jie)儀(yi)(yi)器(qi)的(de)(de)(de)朋友，向大家簡(jian)要(yao)的(de)(de)(de)介紹一(yi)(yi)(yi)下(xia)(xia)(xia)儀(yi)(yi)器(qi)構造(zao)，無論(lun)是購買還是以后的(de)(de)(de)使(shi)用都會有(you)一(yi)(yi)(yi)定(ding)的(de)(de)(de)幫助。我(wo)(wo)們(men)今天就(jiu)拿GC氣相色譜(pu)(pu)(pu)儀(yi)(yi)來進行構造(zao)解(jie)(jie)析。首(shou)先我(wo)(wo)們(men)要(yao)知道氣相色譜(pu)(pu)(pu)儀(yi)(yi)的(de)(de)(de)幾大系(xi)(xi)(xi)(xi)統(tong)有(you)哪些(xie)。載氣系(xi)(xi)(xi)(xi)統(tong)、進樣系(xi)(xi)(xi)(xi)統(tong)、分離系(xi)(xi)(xi)(xi)統(tong)、檢測系(xi)(xi)(xi)(xi)統(tong)、信號記(ji)錄或微機處理(li)系(xi)(xi)(xi)(xi)統(tong)、溫度控制系(xi)(xi)(xi)(xi)統(tong)。下(xia)(xia)(xia)面我(wo)(wo)們(men)看下(xia)(xia)(xia)六大系(xi)(xi)(xi)(xi)統(tong)具體的(de)(de)(de)作用。分...
化(hua)(hua)工(gong)氣相色譜(pu)(pu)儀(yi)應(ying)用(yong)于(yu)分(fen)析(xi)(xi)過程實現全自(zi)動(dong)化(hua)(hua)，無需人工(gong)取樣，遠程數據傳輸，實時檢(jian)(jian)測(ce)生產過程中(zhong)組(zu)分(fen)含(han)量變化(hua)(hua)。宜先防爆在線(xian)(xian)氣相色譜(pu)(pu)分(fen)析(xi)(xi)系統(tong)有前級減壓站、恒(heng)溫樣品傳輸管線(xian)(xian)、預處理系統(tong)、載氣站、在線(xian)(xian)色譜(pu)(pu)分(fen)析(xi)(xi)儀(yi)組(zu)成。防爆在線(xian)(xian)氣相色譜(pu)(pu)分(fen)析(xi)(xi)系統(tong)可應(ying)用(yong)于(yu)石油化(hua)(hua)工(gong)、煤化(hua)(hua)工(gong)、精細化(hua)(hua)工(gong)、環境監測(ce)、天然氣、空分(fen)行(xing)業、醫藥化(hua)(hua)工(gong)等(deng)領域。化(hua)(hua)工(gong)氣相色譜(pu)(pu)儀(yi)的基本構造有兩部分(fen)，即分(fen)析(xi)(xi)單元和(he)顯(xian)示(shi)單元。前者(zhe)主(zhu)要(yao)包(bao)括氣源及控制計(ji)量裝(zhuang)置(zhi)﹑進(jin)樣裝(zhuang)置(zhi)﹑恒(heng)溫器和(he)色譜(pu)(pu)柱。后者(zhe)主(zhu)要(yao)包(bao)括檢(jian)(jian)定器和(he)自(zi)動(dong)記錄儀(yi)。色譜(pu)(pu)柱（包(bao)括固(gu)定相）和(he)檢(jian)(jian)定器...
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