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wenj2377
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2Â¥2009-07-13 16:42:52
llyz0825
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???????????????????ÈÉ????????§Ñ?????¦Æ?????????????????????????????§µ???????§Ø??? ??????H2NCH2CH2NH2 ????????60.10(??1983??????????) 1 ??????? 1.1 H2NCH2CH2NH2???????????99.0%?? 1.2 ???????????10?µµ 1.3 ??????? 1.4 ??????????????????????????? ?? ?? ?? ?? ?? ??????? ?????????Pb??? &nb bsp; 0.03 0.0002 2 ???ú›?? ??????????????????????????????????GB 601??77???????? ?????????????????GB 602??77???????? ??????????????????GB 603??77???????? ?????????????????ÕÇ????? 2.1 H2NCH2CH2NH2?????????30ml????????????????????????§µ??????????1ml?????????????????30min??????????????¦Ã??????????0.0002g????20ml????????????????5??0.1%???????????????1N??????????¦Æ???????????? H2NCH2CH2NH2?????????X??????????? X = V??N??0.03005 m ??§µ?V ???? ????????????????ml?? N ??????????????????????N?? m ???? ?????????g?? 0.03005 ???? ????????H2NCH2CH2NH2??????? 2.2 ??????????GB 618??77???????? ????????????ÕÇ???? 2.3 ???????25ml?????????????§µ?????????????????????????????GB 605??77???????? ?????????ÕÇ?10????????? 2.4 ?????????????????0.1ml?? 2.4.1 ??????????5.2ml??5g?????????????????????§µ??????????????2ml????????????????¦²?????105??110???????????????????????????1.5mg?? 2.4.2 ??????????10.4ml??10g???????????????????§µ??????????????500??????????????????????1ml????3ml??????????????????????10%????§Ü???????40ml???30ml???????40ml????1ml1N????10ml?????????????????????????10min???????????????????? ??????????10ml????????0.01mg?????Pb????????????????40ml????????????????????????? |
3Â¥2009-07-13 16:44:17
jcl1012
ͳæ (СÓÐÃûÆø)
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http://www.21cnlab.com/jishu/fenxi/2008-05-15/10913.html ÎÒÔÚÍøÉÏÕÒÁËһϸоõÕâ¸ö»¹²»´í Äã¿´¿´ |
4Â¥2009-07-13 16:45:53
|
???ú›?? ??????????????????????????????????GB 601??77???????? ?????????????????GB 602??77???????? ??????????????????GB 603??77???????? ?????????????????ÕÇ????? 2.1 H2NCH2CH2NH2?????????30ml????????????????????????§µ??????????1ml?????????????????30min??????????????¦Ã??????????0.0002g????20ml????????????????5??0.1%???????????????1N??????????¦Æ???????????? H2NCH2CH2NH2?????????X??????????? X = V??N??0.03005 m ??§µ?V ???? ????????????????ml?? N ??????????????????????N?? m ???? ?????????g?? 0.03005 ???? ????????H2NCH2CH2NH2??????? 2.2 ??????????GB 618??77???????? ????????????ÕÇ???? 2.3 ???????25ml?????????????§µ?????????????????????????????GB 605??77???????? ?????????ÕÇ?10????????? 2.4 ?????????????????0.1ml?? 2.4.1 ??????????5.2ml??5g?????????????????????§µ??????????????2ml????????????????¦²?????105??110???????????????????????????1.5mg?? 2.4.2 ??????????10.4ml??10g???????????????????§µ??????????????500??????????????????????1ml????3ml??????????????????????10%????§Ü???????40ml???30ml???????40ml????1ml1N????10ml?????????????????????????10min???????????????????? ??????????10ml????????0.01mg?????Pb????????????????40ml????????????????????????? |
5Â¥2009-07-13 19:24:27
liujunhero
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6Â¥2009-07-13 20:13:54
wxq_
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7Â¥2009-07-13 20:37:51













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