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geliable_dk

金虫 (初入文坛)

[求助] BET表征时,比表面积为负值,什么原因,怎么解决?(数据如下)

催化剂为自合成Y型分子筛,测试方法为微孔方法
Surface Area               
Single point surface area at p/p?= 0.214749591:        193.9689 m?g       
BET Surface Area:        -437.8251 m?g       
Langmuir Surface Area:        -189.9088 m?g       
BJH Adsorption cumulative surface area of pores between 1.7000 nm and 300.0000 nm width:        412.640 m?g       
BJH Desorption cumulative surface area of pores between 1.7000 nm and 300.0000 nm width:        436.1675 m?g       
Pore Volume               
Single point adsorption total pore volume of pores less than 80.5832 nm width at p/p?= 0.975375748:        0.567907 cm?g       
BJH Adsorption cumulative volume of pores between 1.7000 nm and 300.0000 nm width:        0.877049 cm?g       
BJH Desorption cumulative volume of pores between 1.7000 nm and 300.0000 nm width:        0.896655 cm?g       
Pore Size               
Adsorption average pore width (4V/A by ):        -5.18844 nm       
BJH Adsorption average pore width (4V/A):        8.5018 nm       
BJH Desorption average pore width (4V/A):        8.2230 nm
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NFS
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jjiamin

至尊木虫 (正式写手)

【答案】应助回帖

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王晓萌: 金币+1, 谢谢分享,欢迎常来! 2013-12-02 16:02:41
软件上显示出现错误,代码是6529,好像是说1mmHg或10mmHg的检测器飘移比较厉害,我查了一下ASAP操作手册,上面给出的对策是如果多次测试还是显示该错误,就要与麦克工程师联系了。
9楼2013-12-02 15:11:51
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zhenwuhuang

至尊木虫 (文学泰斗)

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感谢参与,应助指数 +1
非文王木木: 金币+1, 感谢交流···欢迎常来 2013-11-18 15:39:15
多点BET方程压力点选取原则
http://www.bjbuilder.com/list_m. ... =18&pid=592
3楼2013-11-18 15:09:20
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geliable_dk

金虫 (初入文坛)

引用回帖:
2楼: Originally posted by 科学的态度 at 2013-11-18 14:41:20
顶一下,等高人

4楼2013-11-18 19:25:50
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geliable_dk

金虫 (初入文坛)

引用回帖:
3楼: Originally posted by zhenwuhuang at 2013-11-18 15:09:20
多点BET方程压力点选取原则
http://www.bjbuilder.com/list_m.asp?id=3&nid=18&pid=592

谢谢,不过图怎么看不到啊,还没解决= =
NFS
5楼2013-11-18 19:26:38
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