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气相色谱仪柱前衍生化的常见方法总汇

DIANJICISHU:49 FABUSHIJIAN:2019/12/31 15:15:30

 气相色谱仪衍生化技术是通过化学反应将样品中难于分析检测的目标化合物定量的转化为另一种易于分析检测的化合物,通过后者的分析检测可以对目标化合物进行定性和定量分析。

 

气相色谱仪

 

柱前衍生化的条件

皇冠篮球比分网SHOUXIAN,RUGUOYAOSHIXIANGZAISEPUZHONGSHIYONGZHUQIANYANSHENGHUA,QIYANSHENGHUAFANYINGYINGGAIMANZUYIXIAJIGETIAOJIAN:

1、FANYINGNENGXUNSU、DINGLIANGDEJINXING,FANYINGZHONGFUXINGHAO,FANYINGTIAOJIANBUKEKE,RONGYICAOZUO;

皇冠篮球比分网2、FANYINGDEXUANZEXINGGAO,ZUIHAOZHIYUMUBIAOHUAHEWUFANYING,JIFANYINGJUYOUZHUANYIXING;

皇冠篮球比分网3、YANSHENGHUAFANYINGCHANWUZHIYOUYIZHONG,FANYINGDEFUCHANWUHEGUOLIANGYANSHENGHUASHIJIBUGANRAOMUBIAOHUAHEWUDEFENLIYUJIANCE;

4、YANSHENGHUASHIJIFANGBIANYIDE,TONGYONGXINGHAO。

 

气相色谱仪

 

气相色谱仪常见的衍生化反应

1、ZHIHUAYANSHENGHUAFANGFA

(1)JIACHUNFA:YOUJISUANYUJIACHUNZAICUIHUAJITIAOJIANXIAJIARE,FASHENGZHIHUAFANYING,SHENGCHENGYOUJISUANJIAZHI。YIBANCAIYONGSANFUHUAPENGZUOCUIHUAJI,TONGCHANGJIANGSANFUHUAPENGTONGRUJIACHUNPEIZHIZHIHUAJI,YINWEIPEIZHIGUOCHENGZHONGYIFANGRE,YOUYIDINGDEWEIXIANXING,XIANZAIYEYOUSHANGPINHUADESANFUHUAPENGJIACHUNRONGYEKEZHIJIEGOUMAISHIYONG。

(2)ZHONGDANJIAWANFA:ZHONGDANJIAWANKEYIYUYOUJISUANFANYINGSHENGCHENGYOUJISUANJIAZHIFANGCHUDANQI。CIFAJIANBIANYOUXIAO,FANYINGSUDUKUAI,ZHUANHUALVGAO,JIAOSHAOFUFANYING,BUYINRUZAZHI,DANSHIFANYINGYAOZAIFEISHUIJIEZHIZHONGJINXING。SUIRANFANYINGTIAOJIANWENHE,DANSHIZHONGDANJIAWANBUWENDING,YOUBAOZHAXING、YOUDU,ZHIBEIYUSHIYONGSHIYAOTEBIEXIAOXIN。LINGWAI,FENQIANGJIZAICHANGWENXIAKEYIYUZHONGDANJIAWANFANYING,DANZAI0℃XIAKEYIBIMIANFENQIANGJIFANYING。

皇冠篮球比分网(3)SANFUYISUANGANFA:ZAISANFUYISUANGANDECUNZAIXIAYOUJISUANHESUANKEYIFANYINGSHENGCHENGZHI,BIJIAOSHIHEKONGJIANWEIZUJIAODADEYOUJISUANHECHUNHUOFENDEZHIHUA。

(4)QITAZHIHUAFA:YOUSHIWEILETIGAOFANGFADELINGMINDUHEXUANZEXING,XUYAOZHIBEIJIAZHIZHIWAIDEZHI,FANGFAYUJIAZHIHUAFANGFALEISI,KEYIYONGZHONGDANYIWAN、ZHONGDANBINGWAN、ZHONGDANJIABENDAITIZHONGDANJIAWANYIZHIDEXIANGYINGDEZHI,QIEZHEIXIESHIJIDEWENDINGXINGHAO、BAOZHAXINGXIAO。YONGSANFUHUAPENGDEBINGCHUN、DINGCHUNHUOWUCHUNRONGYEYUYOUJISUANFANYINGYEKEYIZHIDEXIANGYINGDEBINGZHI、DINGZHIHUOWUZHI。

 

气相色谱仪

 

2、XIANHUAYANSHENGHUAFANGFA

XIANHUANENGJIANGDIQIANGJI、ANJI、QIUJIDEJIXING,GAISHANZHEIXIEHUAHEWUDESEPUXINGNENG,BINGTIGAOZHEIXIEHUAHEWUDEHUIFAXING,ZENGJIAMOUXIEYIYANGHUAHUAHEWUDEWENDINGXING。DANGXIANHUASHIYINRUHANYOULULIZIDEXIANJISHI,HAIKEYITIGAOSHIYONGECDJIANCEQIDELINGMINDU。CHANGYONGDEXIANHUASHIJIYOUXIANLU、SUANGANHEFANYINGHUOXINGDEXIANHUAWU。

(1)YIXIANHUAFA:BIAOZHUNYIXIANHUAFASHIJIANGYANGPINRONGYULVFANGZHONG,YUYISUANGANHEYISUANZAI50℃FANYING2-6h,ZHENKONGCHUQUSHENGYUSHIJI。HAIKEYIYISUANNAWEIJIANXINGCUIHUAJI,YIYISUANGANWEIYIXIANHUASHIJIJINXINGYIXIANHUAFANYING,YONGYUTANGLEIFENXI。BIDING、SANJIAAN、JIAJIMIZUOYEKEYIZUOWEIJIANXINGCUIHUAJI。YIXIANHUAFANYINGTONGCHANGZAIFEISHUIJIEZHIZHONGJINXING,DANSHIANLEIHEFENLEIHUAHEWUYIXIANHUASHIKEZAISHUIRONGYEZHONGJINXING。

(2)DUOFUXIANHUAFA:CHANGYONGDEDUOFUHUASHIJISHISANFUYIXIAN(TFA)、WUFUBINGXIAN(PFP)HEQIFUDINGXIAN(HFB),QIHUOXINGSHITFA>PFP>HFB。TFAHEPFPDEYANSHENGWUHUIFAXINGJIAOQIANG,ERHFBDEYANSHENGWUECDLINGMINDUJIAOGAO。DUOFUXIANHUAFANYINGSHIJIANCHULEQUJUEYUDUOFUXIANHUASHIJIDEHUOXING,HAIQUJUEYUMUBIAOHUAHEWUDEHUOXING。DUOSHUQINGKUANGXIAFUXIANHUAFANYINGBUXURONGJI,DANYOUXIEQINGKUANGXIAYESHIXUYAORONGJIDE,CIWAIYOUSHIHAIXUYAOJIAJIANXINGCUIHUAJI。

 

气相色谱仪

 

3、LUHUAYANSHENGHUAFA

ZAIMUBIAOHUAHEWUZHONGYINRULUYUANZIHOUKESHIYONGECDJIANCEQI,TIGAOJIANCEDELINGMINDU,TONGSHIKEYIGAISHANHUIFAXINGHEWENDINGXING,CHANGYONGDELUHUAYANSHENGHUAFANGFARUXIA:

(1)LUSUFA:YONGLUSUZHIJIEZUOWEIYANSHENGHUASHIJICHULIYANGPIN,LUSUDEZUOYONGSHIJIACHENGHUOQUDAI

皇冠篮球比分网(2)LUHUAQINGFA:CHANGYONGHClHEHBrWEIYANSHENGHUASHIJIYUBUBAOHELIANFASHENGJIACHENGFANYINGHUOYUQIANGJIFASHENGZHIHUANFANYING

皇冠篮球比分网(3)N-XIUDAIDINGERXIANYAAN(NBS)FA:NBSSHIXUANZEXINGHENQIANGDELUHUAYANSHENGSHIJI,KESHIXIBINGWEIDEQINGYUANZIFASHENGXIUDAIFANYING

 

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