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红外光谱仪使用的12个疑问
编辑 :

TIANJINSHINENGPUKEJIYOUXIANGONGSI

时间: 2017-09-01 浏览量: 5502

自1940年商品红外光谱仪问世以来,在有机化学研究中得到广泛的应用。到70年代,傅立叶变换红外光谱悠洋棋牌 (FTIR) 实验技术进入现代化学家的实验室,成为结构分析的重要工具。它以高灵敏度、高分辨率、快速扫描、联机操作和高度计算机化的全新面貌使经典的红外光谱技术再获新生。


红外光谱作为结构分析的重要工具,如何衡量红外光谱性能?红外光谱信噪比如何测定?对实验环境有哪些要求?什么样的谱图才算是一张好谱图?红外光谱操作中如何防护?请看下文!


悠洋棋牌ZENMEJINXINGHONGWAIGUANGPUDEDINGLIANGFENXIHEDINGXINGFENXI


HONGWAIGUANGPUDINGXINGFENXI:

悠洋棋牌YIBANCAIYONGSANZHONGFANGFA:YONGYIZHIBIAOZHUNWUDUIZHAO、BIAOZHUNPUTUCHADUIFAHEZHIJIEPUTUJIEXIFA。     

1. YIZHIWUDUIZHAOYINGYOUBIAOZHUNPINHEBEIJIANWUZAIWANQUANXIANGTONGDETIAOJIANXIA,FENBIEHUIZHIHONGWAIGUANGPUTUJINXINGDUIZHAO,PUTUXIANGTONGZEKENDINGWEITONGYIHUAHEWU。   

2. 标准谱图查对法是一种最直接、可靠的方法。在用未知物谱图查对标准谱图时,必须注意:测定所用仪器与绘制标准谱图的在分辨率和精度上的差别,可能导致某些峰细微结构的差别;未知物与标准谱图的测定条件必须一致,否则谱图会出现很大差别;必须注意引入杂质吸收带的影响。如KBr悠洋棋牌压片可能吸水而引入水吸收带等。     

3. DUIYUWEIZHIHUAHEWU,KEANZHAORUXIABUZHOUJIEXIPUTU:XIANCONGTEZHENGPINLVQURUSHOU,ZHAOCHUHUAHEWUHANYOUDEZHUYAOGUANNENGTUAN;ZHIWENQUFENXI,JINYIBUZHAOCHUGUANNENGTUANCUNZAIDEYIJU;ZIXIFENXIZHIWENQUPUDAIWEIZHI、QIANGDUHEXINGZHUANG,QUEDINGHUAHEWUDEKENENGJIEGOU;DUIZHAOBIAOZHUNPUTU,PEIHEQITAJIANDINGSHOUDUAN,JINYIBUYANZHENG。

 

HONGWAIGUANGPUDINGLIANGFENXI: 

悠洋棋牌XUANQUHESHIDEDINGLIANGXISHOUFENG,CEDINGXISHOUFENGDEXIGUANGDU,YIJULANGBAI-BIERDINGLV,JISUANDAICEZUFENHANLIANG。

  

悠洋棋牌RUHEHENGLIANGHEPINGJIAHONGWAIGUANGPUXINGNENG

 

悠洋棋牌XINZAOBISHIZHIYANGPINXIGUANGDUYUYIQIXIGUANGDUZAOSHENGDEBIZHI,SHIPINGJIAYIQIXINGNENGDEYIGEZHONGYAOZHIBIAO,YIQIXIGUANGDUZAOSHENGKETONGGUOZAIYIDINGDECESHITIAOJIANXIA,ZAIQUEDINGDEBOZHANGFANWEINEIDUIKONGBAIXIANGYINGBIANHUADEFENXIHUODE。DANGZAIQUEDINGDEBOZHANGFANWEINEIDUITONGYIYANGPINJINXINGDUOCICELIANGSHI,YIQIXIGUANGDUZAOSHENGBIAOXIANWEICEDEDEYANGPINXIGUANGDUDEBIAOZHUNCHA。

YIQIDEZAOSHENGZHUYAOQUJUEYUYIQIGUANGYUANDEWENDINGXING、DIANZIXITONGDEZAOSHENG、JIANCEQICHANSHENGDEZAOSHENGYIJIHUANJINGYINGXIANGSUOCHANSHENGDEZAOSHENG,RUDIANZIXITONGSHEJIBULIANG、YIQIJIEDIBULIANG、WAIJIEDIANCIGANRAODENGYINSUDOUHUISHIYIQIDEZAOSHENGZENGDA。

BIRU,JINHONGWAIGUANGPUFENXISHIYIMENRUOXINHAOFENXIJISHU,JICONGYIGEHENQIANGDEBEIJINGXINHAOZHONGTIQUCHUXIANGDUIJIAORUODEYOUYONGXINXI,DEDAOFENXIJIEGUO,YINCIXINZAOBISHIJINHONGWAIGUANGPUYIQIFEICHANGZHONGYAODEZHIBIAOZHIYI,ZHIJIEYINGXIANGFENXIJIEGUODEZHUNQUEDUHEJINGQUEDU。

 

《FULIYEBIANHUANHONGWAIGUANGPUFENXI》ZHONG,YOUHONGWAIYIQIXINZAOBIDEMIAOSHU:

 

“HONGWAIYIQIDEXINZAOBISHIHENGLIANGYITAIYIQIXINGNENGHAOHUAIDEYIXIANGFEICHANGZHONGYAODEJISHUZHIBIAO。DANSHIXINZAOBIDECELIANGFANGFAMUQIANMEIYOUTONGYIDE、GONGRENDEBIAOZHUN,YINCI,GEGEHONGWAIYIQIGONGSISUOJIDINGDEYIQIXINZAOBIMEIYOUKEBIXING。MEIGEHONGWAIYIQIGONGSIDOUYOUXINZAOBIDECELIANGFANGFA,YINCI,XINZAOBIZHIBIAODEYANSHOUZHINENGANZHAOYIQIGONGSIDEYANSHOUFANGFAJINXINGYANSHOU。”

悠洋棋牌  

HONGWAIGUANGPUYIDUISHIYANHUANJINGYOUSHENMEYAOQIU


如何做好一名红外光谱分析员?

 

ZHIZUOJIANBIEDEHUA,HONGWAISHIZUIJIANDANHAOYONGDEYIQI。RUHEZUOHAOYIMINGHONGWAIGUANGPUFENXIYUAN?

ZICONGYOULEJISUANJI,TAKEYIDAITIRENZUOHENDUOHONGWAIGUANGPUTUDEJIEXISHIQING。SUOYI,YIGEHAODEHONGWAIGUANGPUFENXIYUANXUYAOZHIDAOGENGDUODEYANGPINBEIJINGZHISHI!BIJINGHONGWAIZHISHICONGYIGEJIAODUFANYINGCESHIYANGPINTEZHENG。RUGUO,ZHIDAOGENGDUODEBEIJINGZHISHI,KEYIZUIDAXIANDUFAHUIHONGWAIGUANGPUZUOYONG!TUIJIAN《FULIYEBIANHUANHONGWAIGUANGPUFENXI》DIERBAN WENGSHIFU BIANZHU。

 

CAOZUOHONGWAIGUANGPU,YINGGAIYOUNAXIEANQUANFANGHUNI?


HONGWAIGUANGPUYIYOUJIGUANGQI,BUYAOYANJINGZHUSHIGUANGXUETAILIDEJIGUANG。RUGUONISHIYONGDESHIFTIR(HONGWAIFULIYEBIANHUAGUANGPU)DEHUA,SHOUXIANJIANCHAWENSHIDUJISHIFOUFUHEYAOQIU:WENDUWEI16-25°C,XIANGDUISHIDUWEI20%-50%;ER,QUERENZHOUWEIWUZHENDONG、REYUAN、FUSHE、FUSHIXINGQITIYUANLIDIANCIGANRAOJIZHENDONGDENG,YOUQIZHUYIYIQISHIYONGSHIGUANBISHOUJI.RUGUONIMENSHIYONGYEDANZUOWEIYIQILENGQUEJIEZHIDEHUA,ZHUYIYEDANDECHUCUNYUFANGBAO;ZAIZHE,RUGUOZAIZHIZUOYANGPINSHISHIYONGDAOYOUJIRONGJIPIRUZHENGJIWANDENGZHUYITONGFENGPAIQIYIJIZIWOFANGHUDENGANQUANCUOSHI!

 

悠洋棋牌HONGWAIGUANGPUDEFUSHEDUIRENTIYOUHAIMA?


悠洋棋牌ZHUNQUELAISHUO,SHOUJIHUIYINGXIANGDAOHONGWAIBEIJINGYIJIJIXIANDEXINGCHENG,TEBIESHIYIQISHIYONGJIULE,SHOUJIDIANCIFUSHEDEGANRAOBIANYUEJIAMINGXIAN。ZAIZHE,ZHUYIHONGWAIGUANGPUYIDEGUANGYUANDEWEIHUYIJIYIQIDEGANZAO!JUXI,YIBANFTIRCAIYONGBANDAOTIJIGUANGDE,QIGONGLVBUCHAOGUO0.5mW,Class IIDENGJI,JISHIYANJINGKANLEYEMEISHI。

悠洋棋牌CAIYONGHe-NeJIGUANGQIDE,YIBANGONGLVBUCHAOGUO0.5mW,SHUYUClass IIIADENGJI,BUNENGRANGJIGUANGSHUZHISHERUYAN。PINGSHISHIYONGTAMENDEFUSHEHENXIAO,BUHUICHAOGUOJIAOSHIJIANGKEYONGDEJIGUANGBIDE,SUOYIBUBIDANXIN。PINGSHIDUOZHUYISHOUJIFUSHECAISHIGUANJIAN。PS:SHOUJIFUSHEDUIDADUOFTIRDOUYOUYINGXIANG,TEBIESHI1BOSHUFENBIANLVYISHANGDECELIANGYOUQIMINGXIAN,SUOYIDAJIACESHISHUJUSHIZUIHAOGUANBISHANGWANG,JIEDIANHUAYUANLICESHIYIQI。

 

YUNFUCAOZUODEHUA,YINGGAIMEIYOUYINGXIANG。BIRU,FENGUANGGUANGDUJIDEYONGDESHIKEJIANGUANGERBUSHIGEZHONGFUSHE,QIYIQIYUNXINGGUOCHENGZHONGYEBUHUICHANSHENGYOUHAIFUSHE,SUOYIBUHUIYOUYINGXIANG。YUANZIXISHOUSHENGCHENGDEGUANGPUSHIKEJIANGUANGWEIZHU,RUGUONIYAOCESHIDEWUZHIQITIBENSHENBUDAIQIANGLIEDEFUSHEXING,CHANSHENGDEFUSHEQISHIXIANGDUIANQUAN。

 

HONGWAIPUTUDEHAOHUAIPANDUAN?


悠洋棋牌ZHIZUODEHONGWAIGUANGPUTUZHILIANGHAOHUAI,KEGENJURUXIAFANGFAPANDUAN:PUTUJIXIANPINGZHI,JIXIANTOUGUANGLVZAI100%FUJIN;XISHOUFENGZHONG,JIYOUTOUGUANGLVJIAODIDEQIANGFENG,YEYOUTOUGUANGLVJIAOGAODERUOFENG。RUGUOSUOYOUDEXISHOUFENGDOUHENQIANG(TOUGUANGLVDOUHENDI),BIAOMINGYANGPINHANLIANGTAIGAO;RUGUOSUOYOUFENGDOUHENRUO(TOUGUANGLVDOUHENGAO),ZEBIAOMINGYANGPINHANLIANGTAIDI。

YIBANLAISHUO,PUTUZHONGZUIDAXISHOUFENGZAI15%TZUOYOU,JIXIANZAI80%TZUOYOU,QIEJIXIANBAOCHIPINGZHI,DEDAOSHIDETUJIUSHIHAOTU。

 

NIHULVEYANGPINTUPUYUBIAOZHUNTUPUDUIBILEMA?

 

ZHILIANGBIAOZHUNZHONGHONGWAIJIANBIEXIANGXIATONGCHANGGUIDINGCEDEDEYANGPINHONGWAIGUANGPUTUYINGYUDUIZHAOPINTUPUYIZHI,DANGPUTUSHANGDETEZHENGXISHOUDAIWEIZHI、XINGZHUANGJIQIANGDUXIANGYIZHISHI,KEYIWANQUANQUEZHENG。DANGRAN,LIANGTUJUEDUIWENHEBUKENENG,DANGETEZHENGXISHOUDAIDEXIANGDUIQIANGDUDESHUNXUSHIBUBIANDE。RUGUOBUSHIWANQUANYIZHIZENMEBAN?

 

YIBANKAOLVQUZHONGJIANSUODEDUIZHAOPINZAIYAYIGEDUIZHAOTUPU,HUOJIANCHAYANGPINZHIBEIGUOCHENGYOUMEIYOUWENTI(BIRUYANMOSHIFOUCHONGFEN)。TEBIEYAOZHUYISHIFOUDUOYIXIEFENGHUOZHESHAOYIXIEFENG(KENENGYANGPINCUOLE)。BIYAOSHIQUZHIQIANZUOGUODEHEGELIUYANGLAIDUIBIYIXIA。RUGUOHAISHIBUYIZHIJIUFABUHEGEBAOGAO。YINWEIJINGCHANGFAXIANZHOUWEIYOUXIEJIANCERENYUANBUZHONGSHIBIDUIGONGZUO,RENWEITONGYIGEGONGYISHENGCHANCHULAIDECHANPINYINGGAIBUHUIYOUSUOBUTONG,KESHISHIBUSHIZHEIYANGDE。YANGPINCUODEKENENGXINGYEYOU,RENHEXIJIEDOUBUYAOCUOGUO。

 

悠洋棋牌WEISHENMEHONGWAIGUANGPUTUZONGZUOBIAODEFANWEIWEI4000~400 cm-1?

 

HONGWAIGUANGPUJIEGOUJIEXIJINGYAN

 

悠洋棋牌YIGEWEIZHIHUAHEWUJINYONGHONGWAIGUANGPUJIEXIJIEGOUSHISHIFENKUNNANDE。YIBANZAIGUANGPUJIEXIQIAN,YAOZUOWEIZHIWUDECHUBUFENXI,HONGWAIGUANGPUPUTUDEJIEXIGENGDAIYOUJINGYANXING、LINGHUOXING。

悠洋棋牌JIEXIZHUYAOSHIZAIZHANGWOYINGXIANGZHENDONGPINLVDEYINSUJIGELEIHUAHEWUDEHONGWAITEZHENGXISHOUPUDAIDEJICHUSHANG,ANFENGQUFENXI,ZHIRENMOUPUDAIDEKENENGGUISHU,JIEHEQITAFENGQUDEXIANGGUANFENG,QUEDINGQIGUISHU。

悠洋棋牌ZAICIJICHUSHANG,ZAIZIXIGUISHUZHIWENQUDEYOUGUANPUDAI,ZONGHEFENXI,TICHUHUAHEWUDEKENENGJIEGOU。

BIYAOSHICHAYUEBIAOTUPUHUOYUQITAPU(1H NMR,13C NMR,MS)PEIHE,QUEZHENGQIJIEGOU。


HONGWAIGUANGPUYICAOZUOGUICHENG

 

CAOZUOBUZHOU 

1.KAIJIQIANZHUNBEI   

KAIJIQIANJIANCHASHIYANSHIDIANYUAN、WENDUHESHIDUDENGHUANJINGTIAOJIAN,DANGDIANYAWENDING,SHIWENWEI21±5℃ZUOYOU,SHIDU≤65%CAINENGKAIJI。

2.KAIJI   

KAIJISHI,SHOUXIANDAKAIYIQIDIANYUAN,WENDINGBANXIAOSHI,SHIDEYIQINENGLIANGDADAOZUIJIAZHUANGTAI。KAIQIDIANNAO,BINGDAKAIYIQICAOZUOPINGTAIOMNICRUANJIAN,YUNXINGDiagnosticCAIDAN,JIANCHAYIQIWENDINGXING。

3.ZHIYANG   

悠洋棋牌GENJUYANGPINTEXINGYIJIZHUANGTAI,ZHIDINGXIANGYINGDEZHIYANGFANGFABINGZHIYANG。

4.SAOMIAOHESHUCHUHONGWAIGUANGPUTU   

悠洋棋牌CESHIHONGWAIGUANGPUTUSHI,XIANSAOMIAOKONGGUANGLUBEIJINGXINHAO(Collect→Background),ZAISAOMIAOYANGPINWENJIANXINHAO(Collect→Sample),JINGFULIYEBIANHUANDEDAOYANGPINHONGWAIGUANGPUTU。 5.GUANJI   (1)GUANJISHI,XIANGUANBIOMNICRUANJIAN,ZAIGUANBIYIQIDIANYUAN,ZUIHOUGUANBIJISUANJIBINGGAISHANGYIQIFANGCHENZHAO;(2)ZAIJILUBENJILUSHIYONGQINGKUANG。  

 

悠洋棋牌HONGWAIGUANGPUYISHIYONGZHUYISHIXIANG


1.BAOCHISHINEIGANZAO,KONGDIAOHECHUSHIJIBIXUQUANTIANKAIJI(BAOCHIHUANJINGTIAOJIAN 25±10℃ZUOYOU,SHIDU≤70%); 

2.BAOCHISHIYANSHIANJINGHEZHENGJIE,BUDEZAISHIYANSHINEIJINXINGYANGPINHUAXUECHULI, SHIYANWANBIJIQUCHUYANGPINSHINEIDEYANGPIN。 

3.JINGCHANGJIANCHAGANZAOJIYANSE,RUGUOLANSEBIANQIAN,LIJIGENGHUAN。

悠洋棋牌4.GENJUYANGPINTEXINGYIJIZHUANGTAI,ZHIDINGXIANGYINGDEZHIYANGFANGFABINGZHIYANG。

悠洋棋牌5.CESHIHONGWAIGUANGPUTUSHI,SAOMIAOKONGGUANGLUBEIJINGXINHAOHEYANGPINWENJIANXINHAO, JINGFULIYEBIANHUANDEDAOYANGPINHONGWAIGUANGPUTU。GENJUXUYAO,DAYINHUOZHEBAOCUNHONGWAIGUANGPUTU。 

6.SHIYANWANBIHOUZAIJILUBENSHANGJILUSHIYONGQINGKUANG。 

悠洋棋牌7.SHEBEITINGZHISHIYONGSHI,YANGPINSHINEIYINGFANGZHISHENGMANGANZAOJIDEPEIYANGMIN。

悠洋棋牌8.GANZAOJIZAISHENG:JIANGGANZAOJIZAIHONGXIANGNEI105℃HONGGANZHILANSE(YUE3XIAO SHI)JIKE。 

9.将压片模具、KBr晶体、液体池悠洋棋牌及其窗片放在干燥器内备用。

悠洋棋牌10.YETICHISHIYONGNaCl、CaF2、BaF2DENGJINGTIHENCUIYISUI,YINGXIAOXINBAOCUN。

悠洋棋牌 11.YETICHISHIYONGDEKRS-5JINGTIJUDU,SHIYONGSHIBIMIANZHIJIEJIECHU(DAISHOU TAO),DAMOKRS-5JINGTISHIBIMIANJIECHUHUOXIRUKRS-5FENMO,DAMODEFEIQIWUBIXUTUOSHANCHULI。


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