w*0
发帖数: 4 | 1 如何测量产生的铝沉淀（Al(OH)3)或Kaolinite的悬浮物大小，因为悬浮物的大小可能
会随时间变化。还有Al(OH)3的沉淀的形状问题对结果有无影响？
谢谢！ |
m********e
发帖数: 177 | 2 应该有什么电子显微镜之类的可以拍下来再分析的吧，瞎猜的 |
a***h
发帖数: 1222 | 3 The mineral morphology of the aluminum oxides or Kaolinite can be determined
using XRD (X-ray defraction). The particle size can be analyzed using
gravity sedimentation.
【在 w*0 的大作中提到】
: 如何测量产生的铝沉淀（Al(OH)3)或Kaolinite的悬浮物大小，因为悬浮物的大小可能
: 会随时间变化。还有Al(OH)3的沉淀的形状问题对结果有无影响？
: 谢谢！
|
w*0
发帖数: 4 | 4 Thanks.
But could I measure the change of particle size during the process? I found
the with the change of pH, the size of aluminum precipitates become larger
with the sedimentation.
determined
【在 a***h 的大作中提到】
: The mineral morphology of the aluminum oxides or Kaolinite can be determined
: using XRD (X-ray defraction). The particle size can be analyzed using
: gravity sedimentation.
|
a***h
发帖数: 1222 | 5 Laser particle size analyzer may able do the job since it is non destructive
. But I don't have direct experience. You may consult some body in
nanotechnology field.
found
【在 w*0 的大作中提到】
: Thanks.
: But could I measure the change of particle size during the process? I found
: the with the change of pH, the size of aluminum precipitates become larger
: with the sedimentation.
:
: determined
|
j******w
发帖数: 559 | 6 以前做过与这个比较相近的，是测c60.
你可以试试这个：http://www.malvern.co.uk/labeng/industry/protein/zetasizer_for_proteins.htm
这个可以测size 随着pH变化，或者离子强度变化等等。因为pH 或者离子强度会影响胶
体的双电层，导至胶体之间的作用力变化了，一般是会电斥变化。一般可以测量等电点
（zeta potential) 可以判断电斥力的变化趋势。
found
【在 w*0 的大作中提到】
: Thanks.
: But could I measure the change of particle size during the process? I found
: the with the change of pH, the size of aluminum precipitates become larger
: with the sedimentation.
:
: determined
|
a***h
发帖数: 1222 | 7 alunimum precipitate can be craystalline or amorphous in different
environment conditions. |
