【總結】高效液相色譜儀的常用數據處理方法

發布日期:2021-06-29
核心提示:gaoxiaoyexiangsepuyideyiqibenshenshijiluyangpintongguojianceqishi,xiguangdudebianhuaerchanshengdedianxinhaobianhua,congerchanshengsepuputu,zuizhongdejieguojiuyaokaohouqidesepushujuchulixitong。
譜(pu)圖(tu)處(chu)理(li)完(wan)即(ji)可(ke)製(zhi)作(zuo)校(xiao)正(zheng)曲(qu)線(xian),校(xiao)正(zheng)曲(qu)線(xian)是(shi)數(shu)據(ju)處(chu)理(li)的(de)重(zhong)點(dian),是(shi)將(jiang)標(biao)樣(yang)譜(pu)圖(tu)的(de)信(xin)息(xi)與(yu)數(shu)據(ju)做(zuo)成(cheng)一(yi)個(ge)標(biao)準(zhun),供(gong)處(chu)理(li)試(shi)樣(yang)譜(pu)圖(tu)使(shi)用(yong)。校(xiao)正(zheng)是(shi)通(tong)過(guo)分(fen)析(xi)指(zhi)定(ding)的(de)準(zhun)備(bei)好(hao)的(de)標(biao)準(zhun)樣(yang)品(pin),來(lai)確(que)定(ding)計(ji)算(suan)絕(jue)對(dui)組(zu)分(fen)濃(nong)度(du)的(de)響(xiang)應(ying)因(yin)子(zi)的(de)過(guo)程(cheng)。接(jie)下(xia)來(lai)介(jie)紹(shao)常(chang)用(yong)的(de)數(shu)據(ju)處(chu)理(li)方(fang)法(fa):外wai標biao法fa是shi指zhi添tian加jia一yi定ding量liang的de標biao準zhun品pin於yu空kong白bai樣yang品pin中zhong製zhi成cheng對dui照zhao樣yang品pin,與yu未wei知zhi檢jian測ce樣yang品pin平ping行xing進jin行xing樣yang品pin處chu理li並bing檢jian測ce,根gen據ju對dui照zhao品pin響xiang應ying值zhi與yu標biao準zhun品pin的de濃nong度du函han數shu關guan係xi計ji算suan出chu未wei知zhi檢jian測ce樣yang品pin中zhong被bei測ce組zu分fen濃nong度du的de定ding量liang方fang法fa。neibiaofazhideshijiangyidingzhongliangdechunwuzhizuoweineibiaowujiadaoyidingliangdebeiceyangpinhunhewuzhong,ranhouduihanyouneibiaowudeyangpinjinxingsepufenxi,fenbiecedingneibiaowuhedaicezufendefengmianjijixiangduixiaozhengyinzi,angongshijisuanchubeicezufendehanliang。內標法是把標準物質加入到被測樣品中,外標法不是把標準物質加入到被測樣品中,而是在與被測樣品相同的色譜條件下單獨測定。1、外wai標biao法fa要yao求qiu儀yi器qi重zhong複fu性xing很hen嚴yan格ge,適shi於yu大da量liang的de分fen析xi樣yang品pin,因yin為wei儀yi器qi隨sui著zhe使shi用yong會hui有you所suo變bian化hua,因yin此ci需xu要yao定ding期qi進jin行xing曲qu線xian校xiao正zheng。此ci法fa的de特te點dian是shi操cao作zuo簡jian單dan,計ji算suan方fang便bian,不bu需xu測ce量liang校xiao正zheng因yin子zi,適shi於yu自zi動dong分fen析xi。但dan儀yi器qi的de重zhong現xian性xing和he操cao作zuo條tiao件jian的de穩wen定ding性xing必bi須xu保bao證zheng,否fou則ze,會hui影ying響xiang實shi驗yan結jie果guo。2、內標法要求挺嚴格的,對於內標物的選擇要有一定的原則,適於分析樣品量較少的情況;不要求樣品裏的所有組分都出峰,隻要內標物和所關注的組分出峰並分離好就可以了;定量準確,對進樣量和操作條件的控製不很嚴格,但必須準確稱量試樣和內標物,否則會影響實驗結果·。
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編輯:songjiajie2010