24小时热门版块排行榜&&&&
(初入文坛)
在线: 12小时
虫号: 2333168
注册: 专业: 高分子合成化学
如何用origin软件做紫外吸收光谱图已有5人参与
大家好，如何用origin软件做紫外吸收光谱图，因为实验所得到的数据复制粘贴到origin时由原来的两组数据变成了一组数据，我该怎么弄才能把它分离，继续往下作图呢？想求助各位大神，谢谢啦~&&比如下列数据：
200.00,0.356& && && && && &怎么在origin软件把它分成两列数据呢？非常感谢~
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引用回帖:: Originally posted by wangqing2002108 at
你不能直接粘进去，应该从文件菜单中的import中导入你的txt格式文件，数字自然就变成2列了。 谢谢哈~我试试~
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你不能直接粘进去，应该从文件菜单中的import中导入你的txt格式文件，数字自然就变成2列了。
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1.数据拷入excel，如图1，选中数据；
2.如图2，菜单栏-数据，打开文本分列向导（图3），点选“分隔符号”，点击下一步；
3.如图4，Tab键前的对勾去掉，勾选逗号，点击下一步；
4.点击完成，实现数据分列。
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引用回帖:: Originally posted by linkuodong at
1.数据拷入excel，如图1，选中数据；
2.如图2，菜单栏-数据，打开文本分列向导（图3），点选“分隔符号”，点击下一步；
3.如图4，Tab键前的对勾去掉，勾选逗号，点击下一步；
4.点击完成，实现数据分列。
1. ... 谢谢~
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MuChong.com, All Rights Reserved. 小木虫 版权所有怎么用origin8.0做红外光谱的图
怎么用origin8.0做红外光谱的图
就是把数据复制粘贴到origin就好了啊,然后把顺序换下,比方说本来横坐标是从0-4000,那么你就把他换成4000-0,就好了啊.标峰的话,那里面有个peak
我有更好的回答：
剩余:2000字
与《怎么用origin8.0做红外光谱的图》相关的作业问题
还有液膜法呀!这个也很常用,还叠氮基团的化合物常用这类方法,因为叠氮化合物有些不稳定而且在和溴化钾一起研磨的过程中容易分解爆炸之类的.具体就是将样品溶于没有红外吸收的溶液比如氯仿,二氯甲烷中,滴在溴化钾片上,吹干!就OK了. 查看原帖
上面那种图实际上就是在各个 Y值上添加了一个固定的数值之后再全选数据一起做图得到的. 再问： 请问要怎么添加？谢谢！ 再答： 请问你的数据表中的数据是怎样排列的？ A(X)B(Y)C(Y)D(Y)E(Y)F(Y)…… 还是 A(X1)B(Y1)C(X2)D(Y2)E(X3)F(Y3)…… ? 无论是那种都需要在原来的
朋友,一般mg级,看你如何制样了.KBr片子,量很小的吧~最普通的压片法大约需要1mg.要是考虑到取样的问题,肯定需要多取点了用小药匙加一点点样品就好,也没有说一定要1mg,差不多就可以建议您可以到行业内专业的网站进行交流学习!在此,我推荐您分析测试百科网!我和我身边很多人也都是在这个网站学习很成长起来的!
两种方法：1. 你做红外会有很多出峰数据吧,我做XRD就有很多,可以导出成txt格式,复制到数据表了,plot选择line就能出峰2.第二种,用函数,ctrl+Y,会出现对话框,在function里面找chromatography,里面就有红外的选项.希望对你有用~朋友可以到行业内专业的网站进行交流学习!分析测试百科网
还有液膜法呀!这个也很常用,还叠氮基团的化合物常用这类方法,因为叠氮化合物有些不稳定而且在和溴化钾一起研磨的过程中容易分解爆炸之类的.具体就是将样品溶于没有红外吸收的溶液比如氯仿,二氯甲烷中,滴在溴化钾片上,吹干!就OK了.
关于此类混合物检测,一般情况下检测可以提供相关有用的信息,但您想做一个产品,完全把希望寄托在成分分析上,是远远不够的.关于日化所的说法,不敢苟同,把产品与菜说成一起,非常不科学,这类产品一般是水,表面活性剂,及助剂组成,一般情况下这些东西是可以经过一些手段去分离的,其中低沸的物质可以通过GC-MS去定性分析,表面活性剂
C6H5Cl 朋友,我有图谱怎么给你?建议你到 分析测试百科网 群组论坛去问问,我来回答你..这样比较方便..
由红外光谱图可看出该分子中有不对称CH3，因此该分子中有2个CH3，由图也可以看出含有C=O双键，C-O-C单键．所以A的结构简式为CH3COOCH2CH3或是CH3CH2COOCH3，故答案为：CH3COOCH2CH3；CH3CH2COOCH3．
N/mm^2是 牛每平方毫米 的意思这个是应力图,红的部分是受到的应力比较大,蓝的比较小~在平板上应该是应力云图一样的显示~上面写着的stress,就是应力的问题,strain是应变~
黏糊糊的最好能把它放在烘箱里烘干.液体直接有专门的小片；固体的直接KBr压片就OK 再问： 我主要是想把固化的与没有固化的树脂，做红外光谱进行对比~~烘干的话那不就固化了~我见有说涂抹，怎么个涂抹法？谢谢！ 再答： 那就只能是采用测液样的方法，把你的没有固化的样儿涂在测液体的小片凹槽中就可以
用基线校正啊,工具里面有,好好找找吧
红外光谱谱图质量影响因素汇总1、扫描次数对红外谱图的影响：傅里叶变换红外光谱仪测量物质的光谱时,检测器在接受样品光谱信号的同时也接受了噪声信号,输出的光谱既包括样品的信号也包括噪声信号.信噪比与扫描次数的平方成正比.增加扫描次数可以减少噪声、增加谱图的光滑性.2、扫描速度对红外谱图的影响：扫描速度减慢,检测器接收能量增
你这个光谱图…… 十分抱歉…… 实话对你说,建议你重新测谱,降低样品的浓度.因为你的光谱已经严重饱和,很多峰已经无法分辨了.请看光谱中
cm^-1,约2800 cm^-1, cm^-1 这些峰,透过率都是 0 ! 再问： 额……这样的话分析那个有差异的峰是否还有意义？我查到羰基的特
先取一定量的KBr放入玛瑙研钵研磨,然后加入约0.1mg苯甲酸充分研磨（一般15-20min）放入药片剂压制成透明薄片即可有些样品也可以直接在压好的KBr薄片上涂抹,个人倾向于上一种朋友可以到行业内专业的网站进行交流学习!分析测试百科网这块做得不错,气相、液相、质谱、光谱、这方面的专家比较多,基本上问题都能得到解答,有
当一束具有连续波长的红外光通过物质,物质分子中某个基团的振动频率或转动频率和红外光的频率一样时,分子就吸收能量由原来的基态振(转)动能级跃迁到能量较高的振(转)动能级,分子吸收红外辐射后发生振动和转动能级的跃迁,该处波长的光就被物质吸收.所以,红外光谱法实质上是一种根据分子内部原子间的相对振动和分子转动等信息来确定物质
看样子你的光谱峰都饱和了,尤其是3500 cm^-1 附件的峰.应该是样品的量太多造成的.建议压片前至少要减少一半样品的量 再问： 哦 确实是这样啊 那能不能再请教一下为什么2000左右会出现一个吸收峰呢？（标准的没有这个的） 再答： 你扫描样品之前（包括扫描样品的过程中）有没有用高纯N2 吹样品仓？ 如果没有，那么很
标准的方法是用液体样槽,将样品注入里面然后密封好再进行扫描,如果设备没有配备液体样槽,可用另外一种方法,找一个厚度薄一点的PE袋（越薄越好）,作为背景进行扫描,然后再装入乙醇进行扫描（乙醇不可放得太多,两能使两面PE袋润湿即可）；也可以先做一个PE袋的光谱,再做一个PE袋+乙醇的光谱,两个光谱进行相减也可得到乙醇的光谱
前者的苯环含量比后者高或者说后者的烷烃含量更多.因为前者吸收相对更强的地方基本是苯环的特征吸收.1.698,758苯环取代2.苯环面内震动3.苯环面外震动.这三个区域是苯环的特征吸收区域同样的聚苯乙烯,如果苯环含量越高,样品硬度就会越高,固化之后就会越脆.烷基含量越多,一般产品柔韧性
干涉图包含光源的全部频率和与该频率相对应的强度信息,所以,如有一个有红外吸收的样品放在干涉仪的光路中,由于样品能吸收特征波数的能量,结果所得到的干涉图强度曲线就会相应地产生一些变化.包括每个频率强度信息的干涉图,可借数学上的Fourier变换技术对每个频率的光强进行计算,从而得到吸收强度或透过率和波数变化的普通光谱图.