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GB50325-2020 专家答疑之TVOC测试的经验分享(一)
发布时间:2020-11-20   点击次数:123次

     GB 50325-2020《MINYONGJIANZHUGONGCHENGSHINEIHUANJINGWURANKONGZHIBIAOZHUN》YU2020NIAN8YUE1RIYIJINGZHENGSHISHISHI,ANPUSHIYANJUBANDEXIANGGUANWANGLUOPEIXUNKECHENGYESHOUDAOLEGUANGDALAOSHIDEZHICHIHEJIJIXIANGYING。QIANJIQIDEDAYISHOUDAOGEWEILAOSHIDERELIERENKE。GUANYUGAIBIAOZHUNZAISHICAOZHIXINGDEGUOCHENGZHONGGEWEILAOSHIYEYUDAOLEGEZHONGGEYANGSHIJIDEWENTI,JINTIANXIAOBIANYEZHENGLILEMANMANDEGANHUO,FENWEISANQI,WEIDAJIAYIYIJIEDA。

 

01 苯系物检测时,标准物质采用单标和混标的优缺点?

DANBIAO:YOUDIANSHIDANYIKONGZHI、JIAOCHAWURANSHAO,WUXUJIANGUNONGDUDIAN;QUEDIANSHIDUOCIJIABIAOBUNENGBAOZHENGQIMIXING,BEN、(JIABEN、ERJIABEN)XUYAOFENKAIZUO,ZENGJIASHIYANCISHU。

HUNBIAO:JIABIAOKEYIBAOZHENGQIMIXING,DANNONGDUDIANXUYAOJIANGU。

 

02 可以用苯、甲苯和二甲苯的混标一块绘制标曲吗?如果可以,标准系列点数有何要求?

KEYI,BIAOZHUNZHONGBENHE(JIABEN、ERJIABEN)NONGDUDIANBUYIZHI,PEIZHIBIAOZHUNQUXIANNONGDUDIANSHIJIANGUSUOYOUSHEJINONGDUDIAN,ZUOBIAOZHUNQUXIANSHITIQUSUOXUNONGDUDIANJIKE。

 

03 怎么进行加标?

JINLIANGXUANZEKEYIWENKONGDEJIABIAOZHUANGZHI,BAOZHENGJIABIAODEQIMIXING,YONGQIXIANGJINYANGZHENZHIJIEJIADAOJIABIAOCANGLIMIAN,YONGZAIQIJINXINGCHUISAODAOJIEXIHUAN。

 

04 标液选甲醇中的还是二硫化碳中的,有什么区别?

ERLIUHUATANHUIFAXINGGENGQIANG,DUIYUMEIYOUERCILENGJINGDEZHUANGZHIXUANZEERLIUHUATANZUORONGJIDEBIAOYE,KEYIGUIBIRONGJIDEGANRAO。

 

05 三苯混标和单标,同浓度的响应值,有差别吗?差别有多大?

HUNBIAOHEDANBIAORUGUOSHITONGNONGDUTONGYANGDEJIANCEQIZHIJIEJINYANGXIANGYINGZHISHIWUCHABIEDE,RUGUORETUOFUZHONGYOUCHABIECHUXIAN,KENENGSHIJIABIAOGUOCHENGSUNSHIDAOZHIDE。

 

06 TVOC混标曲线做的不好,Tenax管活化后还是有峰是什么原因?

DUIYUTVOCQUXIANBUHAODEWENTI,RUGUOSHISHILIUWANBUHAO,KENENGSHIJIABIAOGUOCHENGZHONGWEIQIHUA,HUOZHEQIHUAHOUBEIXIFU,RUGUOSHIZHENGJIWAN、SANLVYIXIBUHAO,KENENGSHIPEIZHIBIAOYANGSHIHUIFALE。HUOHUAHOUYOUFENG,SHILAOHUABUGOUCHONGFEN,HUOZHELAOHUASHIDUANQI、WENDUBUZU,KEYI320℃REXUNHUANDUOCICHUISAO。

 

07 十六烷不成线性是什么原因?

MEIYOUWANQUANQIHUA,MEIYOUWANQUANJINRUQIXIANGZHONGBEIJIANCEDAO。

 

08 校准曲线的级别配制,一定得完全按照标准上的来吗?最di点可以舍弃吗?

RUGUOXIANGMANZUKUOXIANG,BIXUYAOANZHAOBIAOZHUNDEGUIDINGJINXINGCESHI,BUKEYISHEQIZUIdiDIAN。

 

09 怎么解决改善溶剂峰(甲醇)附近的目标峰分不开的情况?

RUGUORONGJISHIJIACHUN,KEGENGHUANCHENGRONGJISHIERLIUHUATANDEBIAOPIN,XIANGDUILAIJIANGERLIUHUATANDEHUIFAXINGHAO、CHUFENGZAO,KEPAICHUGANRAOWENTI。HUOZHEGENGHUANBUTONGLEIXINGZHUZI。

 

10 TVOC的检出限建议多大浓度?

TVOCDEJIANCHUXIANBUTONGYIQISHIBUYIYANGDE,XUYAOGENJUYIQIXINGHAOJINXINGSHIYANQUEREN,JIANCHUXIANWEIJIANCHUDEFENGDUIYINGYIQIDEXINZAOBIWEI3SHIDENONGDUDIAN。

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