声音好听的女生兼职

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微孔滤膜采集空气中三氯苯胺的气相色谱法测定(一)

[导读]用微孔滤膜采集空气中三氯苯胺

    SANLVBENANSHIWOGUOXINYINJINDEHUAXUECHANPIN ,WEIDUOZHONGYOUJIHECHENGDEYUANLIAO。CHANGWENXIAWEIBAISEJIEJING ,YIRONGYUYOUJIRONGJI ,SHUYIJIDUWU ,YOUZHIAIZUOYONG。WOMENCENGBAODAOLEYONGCHONGJISHIXISHOUGUANCAIJIKONGQIZHONGSANLVBENANDEQIXIANGSEPUFANGFA。YINYONGXISHOUGUANCAIJICUNZAIYIXIAQUEDIAN:

   1、CAIYANGHEYUNSHUBUYIXIEDAI;

   2、BUYIZUOGETICAIYANG;

   3、XISHOUYESHIHUANJIWAN,ZAIQIWENCHAOGUO32℃SHICAIYANGYIHUIFA ,BUSHIYIZHANGSHIJIANCAIYANG。

   所以本课题提出了用微孔滤膜声音好听的女生兼职采集 ,溶剂洗脱的方法 ,既适用于定点采样 ,也适用于个体采样和 TW A监测。具有采样和运输携带方便、采样效率和冼脱效率高的优点。

   原理:空气中三氯苯胺用微孔滤膜采集后 ,用环己烷洗脱 ,经

声音好听的女生兼职 OV -17HE OV -210HUNHESEPUZHUFENLI,DIANZIBUHUOJIANCEQIJIANCE。YIBAOLIUSHIJIANDINGXING,FENGMIANJI(GAO)DINGLIANG。

   YIQI:XIAOXINGSULIAOCAIYANGJIA;WEIKONGLVMO,KONGJING0.45μm ,ZHIJING 25mm(TIANJINJINTENGSHIYANSHEBEIYOUXIANGONGSI);GETICAIYANGQI: LIULIANG 0~3L/min,JIANGSUSHENGJIANHUXIANDIANZIYIQIERCHANG;JUSAIXIAOSHIGUAN 4~5ml;QIXIANGSEPUYI: DAIDIANZIBUHUOJIANCEQI。

   JIANGWEIKONGLVMOGUDINGZAICAIYANGJIANEI,YI 1.5L/minDELIUSUCAI 4.5~15LKONGQIYANGPIN。JIANGZHUANGHAOWEIKONGLVMODECAIYANGJIADAIDAOXIANCHANG,CHUBUCHOUQUKONGQIWAI,YUYANGPINGUANTONGSHIFENXI,ZUOWEIKONGBAIDUIZHAO。

   将采过样的微孔滤膜放入具塞小试管中 ,加入 2. 0ml环己烷洗脱,密塞,不断振摇3~5min ,放置5min再振摇、放置,重复3次。或在漩涡混合器上漩3min,洗脱30min。取1.0μL洗脱液进样 ,测量保留时间和峰面积(或峰高)。由标准曲线上查出三氯苯胺浓度,算空气中三氯苯胺的浓度。

   CAIYANGFANGFADEXUANZEYUCAIYANGXIAOLVSHIYAN ZAIYIDINGTIJI (YUE0.8m3 )DEDUQIJUZHONG,YONGPENWUQIPENRUNONGDUWEI 10mg/mlDESANLVBENANRONGYE ,DUICAIYANGFANGFAJINXINGYOUXUAN。YOUYUSANLVBENANZAICHANGWENXIASHIGUTI,WEILEJIETAZAISHENGCHANHUANJINGKONGQIZHONGCUNZAIDEZHUANGTAI,WOMENZAISHENGCHANSANLVBENANDEXIANCHANGXUAN5GEBUTONGDESHENGCHANGONGXU,YONGTONGZHONGSHOUJIQICHUANLIANJIBUTONGZHONGSHOUJIQICHUANLIAN,ZAITONGYIDIDIANTONGSHICAIYANG。

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