江苏快三走势图

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无锡创想分析仪器有限公司

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地 址:无锡市滨湖区胡埭工业园南区朝阳路8号

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TANLIUFENXIYINAXIEYINSUYINGXIANGLEFENXIJIEGUO?

江苏快三走势图 FABUSHIJIAN:2019-05-05 09:38:20         DIANJI:2550


       MUQIAN,DUIJINSHUZHONGTANHELIUYUANSUDEFENXIYIBANDOUCAIYONGTANLIUFENXIYI。ZAIGECHANGJIAFENXIYIQIDESHIYONGGUOCHENGZHONG,JINGCHANGYOUZHONGFUXINGHUOZAIXIANXINGBUJINRENYIDEQINGKUANG。DUICI,SHOUXIANHUAIYIDESHIYIQIDEGUZHANG,DANWANGWANGJINGGUODUIYIQIYINGJIANDEJIANCHA,JIELUNSHIYIQIGONGZUOZHENGCHANG。XIAWEN,ZHENDUITANLIUFENXIYIDEYUANLI、CAOZUO、FENXILIUCHENGDEPOUXI,ZONGJIECHUYINGXIANGTANLIUFENXIYIFENXIJIEGUOZHUNQUEXINGHEKEKAOXINGDEJIGEYINSU。

1、样品的称样量

       样品称样量不同,其所含的CS量就存在差别,导致分析结果落在仪器校正曲线上的区域不同。由于仪器线性范围所限,这种校正区域的差异会造成分析结果的波动,尤其在分析仪器的上、下限附近时这种影响表现更为突出。

       DUIYUDIHANLIANGYANGPIN,DANGYANGPINCHENGZHONGJIAODASHI,DEDAODEJIEGUOJIUHUIPIANGAO。DUIYUGAOHANLIANGDEYANGPIN,QINGKUANGZEXIANGFAN,DEDAODEJIEGUOHUIPIANDI。

       LINGWAI,YANGPINCHENGYANGLIANGBUTONGZHIJIEYINGXIANGGAOPINGANYINGRANSHAOQINGKUANG。TANLIUYIDERANSHAOWENDU、ZHUANGTAIBUJINYUGAOPINLUBENSHENSHEJIDEGONGLVYOUGUAN,ERQIEYUGANYINGQUNEIDAOCIWUZHIDEDUOSHAOYOUGUAN。RANSHAOWENDUBUSHICHIXUHENGDINGDE,SUIZHEWUZHIDERONGHUARANSHAO,GANYINGLIANGZHUJIANJIANSHAO。LIRU,DUIYUMOUXIETANLIUJIAONANSHIFANGDEWUZHI(RUGUI、TIEDENG),YOUYUJIARUDEZHURONGJIZHONGLIANGJIAOWEIHENGDING,CHANSHENGDERELIANGHENGDING,CISHIGUODUODEYANGPINJIANGHUIDAOZHIYANGPINRANSHAOBUWANQUAN,YANGPINZHONGDETANLIUSHIFANGBUWANQUAN。

江苏快三走势图        DUIYUBUTONGCHANGJIADEYIQI,QIXIANXINGFANWEIJIXIAOZHENGQUXIANTEXINGBUTONG,GAOPINKONGZHIBUFENSHIXIANFANGFABUTONG,YINCIYANGPINDECHENGYANGLIANGDUIFENXIJIEGUOZHUNQUEXINGHEKEKAOXINGDEYINGXIANGYEBUJINXIANGTONG。ZHENDUITEDINGYIQI。XUYAOTONGGUODALIANGDESHIYANSHUXIQITEXING,XUANZEHESHIDECHENGYANGLIANG,CONGERJINKENENGBIMIANYINGXIANG。

2、助溶剂的加入量

       影响分析结果稳定性的另一个因素是助溶剂的加入量,在分析低含量样品时该影响非常突出。例如分析碳硫质量分数小于15μg/g的样品时,分别加入1.5g2g助溶剂(助溶剂中碳硫质量分数分别为≤8μg/g,≤5μg/g),因为助溶剂的加入量通常不参与分析结果计算,因此两次分析之间就引入了0.5g助溶剂所含碳硫量的波动。假定助溶剂中碳硫含量均为3μg/g,样品称样量为0.5g,由于助溶剂的加入量不同 就引入了3μg/g的偏差。

       YINCIZAIFENXIDIHANLIANGYANGPINSHI,YINGJINLIANGBAOZHENGZHURONGJIJIARULIANGDEYIZHI,CONGERJIANGDIYOUZHURONGJIYINRUDEBUQUEDINGYINSU。

3、样品、助溶剂的叠放次序

江苏快三走势图        ZHURONGJIBUJINJUYOUZENGJIAYANGPINZHONGDAOCIWUZHI、TIGAORANSHAOWENDUDEZUOYONG,HAIJUYOUZENGJIAYANGPINLIUDONGXING,XISHIYANGPINDEZUOYONG。FENXIGUOCHENGZHONG,YANGPIN、ZHURONGJIDEDIEFANGCIXUZHIJIEYINGXIANGRANSHAOJIEGUOHEFENXIWENDINGXING。LIRUTIEJIYANGPINZHIJIEZAIYANGQIXIAJINGGAOPINGANYINGERRANSHAO,FANYINGJULIE,RONGRONGHOUFEIJIANYANZHONG,RONGYIZAOCHENGRANSHAOSHISHIYINGGUANDEPOSUNHETAOCIBAOHUTAODEWURAN。HUANCHENGYIWULIDADI,YANGPINZHIYUSHANGCENG,FAXIANRANSHAOSHIZHONGSHIYINGGUANYEHENKUAIBEIWURAN,TAOCIBAOHUTAOSHANGZHANLEYICENGHOUHOUDETIERONGTI,HENNANQINGLI,BUJINYINGXIANGLERANSHAOGUANDESHIYONGSHOUMING,HAIZUAILEYANGQIDEGONGYING,CONGERZHIJIEYINGXIANGFENXIJIEGUODEWENDINGXING。JIANGYANGPINZHIYUDICENG,WULIZHIYUSHANGCENG,FENXIJIESHUHOURANSHAOSHINEISHIYINGGUANFEICHANGGANJING,TAOCIREBAOHUTAOSHANGWUJINSHURONGTIFEIJIANWU,FENXIJIEGUOWENDING。

       YOUCIKEJIAN,YANGPIN、ZHURONGJIDEDIEFANGCIXUDUIYANGPINFENXIJIEGUOWENDINGXINGDEYINGXIANGYEBUKEHUSHI。

4、坩埚

       坩埚的空白一直是碳硫分析人员关注的热点。未经处理的坩埚,空白从10-100μg/g不等。预处理过程条件设置得当,坩埚空白可降至1μg/g以下。试验证明,预处理时间长短和温度高低对获得坩埚稳定的地空白至关重要。例如,经800℃烘烧4h后的坩埚,用于分析钢样,得到的结果波动很大。而经1100℃烘烧4h后的坩埚,坩埚空白可降至1μg/g以下。

       因此,坩埚使用前一定要进行预处理,并控制合适的烘烧温度和时间,一般建议在马弗炉中1100℃下烘烧4h,从而最大程度降低坩埚空白对分析结果稳定性的影响。

5、试剂

江苏快三走势图        SUOYONGDESHIJIZHIJIEYINGXIANGFENXIJIEGUODEWENDINGXING,SHENZHIZHUNQUEXING。ZAIGAOPINHONGWAITANLIUFENXIYIDESHIYONGZHONG,FENXIQIJIZAIQIDEGANZAOCHUNJINGSHIJIANGDIXITONGKONGBAI,DEDAOZHUNQUE、WENDINGFENXIJIEGUODEBAOZHANG。ZAIQIDEJINGHUAGUOCHENGSHOUXIANTONGGUOJIANSHIMIANRANHOUJINGGUOGAOLVSUANMEI,SHIYANZHONGRUJIANGJINGHUAQISHIJIGUANZHONGDESHIJIANZHUANGSHUNXUDIANDAO,RANGQITIXIANJINGGUOGAOLVSUANMEI,ZAIJINGGUOJIANSHIMIAN,HUISHICEDINGJIEGUODEXIANGDUIBIAOZHUNPIANCHAZENGGAO。ZHEISHIYOUYUJIANSHIMIANSUIYOUXISHUIZUOYONG,DANXISHUIXIAOLVBUJIGAOLVSUANMEIQIANG。YINCI,JIANSHIMIANXISHOUQITIZHONGSUOHANDEERYANGHUATANZAZHIDETONGSHI,HUILOUDIAOSHAOLIANGDESHUIQI,YOUZAIQIDAIRUFENXIXITONG。

江苏快三走势图        RANSHAOHOUYONGYUGANZAOFENXIQIDESHIJI(GAOLVSUANMEI)SHIXIAOHOU,ZAIGAOPINLUGUANSHANGZHIHOUDESHUNJIAN,LIUDEJIXIANSHANGHUICHUXIANYIGEHENXIAODEFENG。ZHEISHIYINWEIYOUWAIJIEKONGQIDAIJINLUTANGDESHUIQIWEIBEIGANZAOSHIJIWANQUANXISHOUDIAO,ERSHUIQIDEHONGWAIXISHOUTEZHENGFENGDEBOZHANGWEIZHIYUERYANGHUALIUDEHONGWAIXISHOUTEZHENGFENGWEIZHIXIANGJIN,ZHIJIEYINGXIANGLIUDEFENXIJIEGUO,ZAOCHENGLIUDEFENXIQUXIANTUOWEI,JIEGUOPIANGAO。

6、灰尘

       FENXIGUOCHENGZHONGHUICHENGDEJILEISUOZAOCHENGDEXIFUYESHIYINGXIANGFENXIJIEGUOWENDINGXINGDEZHONGYAOYINSU,GAIYINGXIANGZAIFENXIDIHANLIANGYANGPINSHIYOUWEIMINGXIAN。SHIYANJIEGUOBIAOMING,SUIZHEFENXICISHUDEZENGJIA,HUICHENYINQIDEPIANCHAYUELAIYUEDA。ERCHEDIQINGLIDIAOHUICHENGUOLVQIZHONGDEHUICHENHOU,DUOCIFENXIJIEGUOYUDIYICIFENXIJIEGUOYIZHI。YINCI,FENXIGUOCHENGZHONG,HUICHENGUOLVQIZHONGDEHUICHENJILEIYINGJISHIQINGLI。

7、温度

       温度对分析结果稳定性的影响主要体现在3个方面。首先,灰尘过滤器的温度影响,在灰尘量相同的情况下,温度越高,其吸附效果越差;其次,气体分析的基础离不开气体状态方程,红外分析系统恒温控制的温度不同,会造成分析气体体积的变化,从而造成一定量的分析气体在不同温度下通过固定长度洪外池的时间差;另外,红外分析系统恒温控制温度的不同,会造成红外光源的发射光强的波动以及热释电检测器的输出的差异,从而影响分析结果的稳定性。一般仪器都会配备这些部位的恒温控制,在分析过程中应随时监测恒温控制效果,避免温度造成的影响。

       ZONGSHANGSUOSHU,TANLIUFENXIYIFENXIJIEGUOWENDINGXINGCUNZAIZHEDUOZHONGYINGXIANGYINSU,ZAIFENXIGUOGUOCHENGZHONG,YOUQISHIFENXIDIHANLIANGYANGPINSHI,KEZONGHEKAOLVZHEIXIEYINSUDEYINGXIANG,CONGERDUIFENXIJIEGUOZUOCHUZHUNQUEPINGJIA。BIMIANYOUYUCUOWUGUJILEWENTISUOZAIERYINGXIANGLEFENXIJIEGUOYUJINDU,ZENGJIAYIQIDEWEIHUCHENGBEN。

 

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