24小时热门版块排行榜    

查看: 5523  |  回复: 11
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

xiazichaoyue

金虫 (正式写手)


[交流] 粒度仪测试纵坐标代表什么

粒度仪测试给出三个图,一个是强度(intensity),一个体积(volume),一个是数目(number),请问以强度为纵坐标的时候代表什么?强度指的什么,具体什么意义
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

» 抢金币啦!回帖就可以得到:

查看全部散金贴

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

xiazichaoyue(金币+1): 谢谢参与
强度我认为没有绝对的意义,只是表示相对量的多少。
7楼2012-03-18 13:34:15
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 12 个回答

xiazichaoyue(金币+1): 谢谢参与
Intensity Distribution
The fi rst order result from a DLS experiment is an intensity distribution of
particle sizes. The intensity distribution is naturally weighted according to
the scattering intensity of each particle fraction or family. For biological
materials or polymers the particle scattering intensity is proportional to
the square of the molecular weight. As such, the intensity distribution
can be somewhat misleading, in that a small amount of aggregation/
agglomeration or presence or a larger particle species can dominate the
distribution. However this distribution can be used as a sensitive detector
for the presence of large material in the sample.
2楼2012-03-17 22:25:10
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
Volume Distribution
Although the fundamental size distribution generated by DLS is an
intensity distribution, this can be converted, using Mie theory, to a
volume distribution or a distribution describing the relative proportion of
multiple components in the sample based on their mass or volume rather
than based on their scattering (Intensity.)
When transforming an intensity distribution to a volume/mass
distribution, there are 4 assumptions that must be accepted.
• All particles are spherical
• All particles are homogeneous
• The optical properties of the particles are known, i.e. the real &
imaginary components of the refractive index
• There is no error in the intensity distribution
3楼2012-03-17 22:26:00
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
★ ★
xiejf: 金币+2, 专家考核, 鼓励交流 2012-03-18 13:33:30
纵坐标始终是相对百分比,你问的问题是不对的
4楼2012-03-17 22:31:10
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[博后之家] 售SCI一区文章,我:8O5.5.1.O5.4,科目全,可伽急 +3 h4CP7TrQR8Lg 2026-08-22 3/150 2026-08-23 16:30 by lXgU0RvNTDC9
[公派出国] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +3 2JOx3r2CYEgw 2026-08-21 6/300 2026-08-23 14:45 by KM5EcsNQRBPn
[论文投稿] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +3 2JOx3r2CYEgw 2026-08-21 8/400 2026-08-23 14:30 by KM5EcsNQRBPn
[基金申请] 什么时候开奖? +9 CrisMessi 2026-08-18 10/500 2026-08-23 12:03 by 丶昵称占用
[基金申请] 让我中一个面上吧! +12 大萍1987 2026-08-20 14/700 2026-08-23 10:30 by wrm
[博后之家] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +3 DpSrDtM079iu 2026-08-22 5/250 2026-08-23 04:07 by OEbVnUOu01ol
[论文投稿] 售SCI一区文章,我:8O5.5.1.O5.4,科目全,可伽急 +3 2JOx3r2CYEgw 2026-08-22 4/200 2026-08-23 04:04 by OEbVnUOu01ol
[论文投稿] 售一区SCI文章T0P,我:8O.551.O54,科目全,可十急 +3 2JOx3r2CYEgw 2026-08-22 5/250 2026-08-23 03:52 by OEbVnUOu01ol
[硕博家园] 售SCI一区文章,我:8O5.5.1.O5.4,科目全,可伽急 +3 2JOx3r2CYEgw 2026-08-22 7/350 2026-08-23 03:43 by OEbVnUOu01ol
[论文投稿] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +3 2JOx3r2CYEgw 2026-08-22 6/300 2026-08-23 03:40 by OEbVnUOu01ol
[考博] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +3 DpSrDtM079iu 2026-08-22 3/150 2026-08-23 00:55 by OEbVnUOu01ol
[基金申请] 人气不行了 +8 fansofjerry 2026-08-21 8/400 2026-08-22 16:30 by zyqchem
[基金申请] 今天基金会出结果吗?20260819 +16 kkkl_v 2026-08-19 17/850 2026-08-22 16:12 by 阿布Abu
[基金申请] 放榜前的不淡定 40+4 snowwithsea 2026-08-19 14/700 2026-08-21 23:51 by cratir
[基金申请] 建议基金发布提前给出明确的时间点 +10 kulium 2026-08-21 13/650 2026-08-21 21:58 by alongwaytogo
[基金申请] 今日不放榜?网传国自然预计 8 月 27 日可查结果 +16 医学老男孩 2026-08-20 20/1000 2026-08-21 21:13 by Ldrop2023
[基金申请] 科研孤儿太难了 +17 我4大白菜 2026-08-20 18/900 2026-08-21 20:57 by zhangev
[基金申请] 感觉是下周放榜了 +7 angus9576 2026-08-17 12/600 2026-08-21 13:38 by weiyin
[基金申请] 我面上完蛋了 +7 且听虎啸 2026-08-20 8/400 2026-08-21 12:31 by 酷酷墨镜
[基金申请] 估计是周四 +3 archvillain 2026-08-18 3/150 2026-08-21 01:48 by jnhyjjm
信息提示
请填处理意见