Polymorph transformation monitoring using in-situ vibrational spectroscopy

被引：0

作者：

Comel, Jeroen ^{[1
]}

Lindenberg, Christian ^{[1
]}

Mazzotti, Marco ^{[1
]}

机构：

[1] ETH, Inst Proc Engn, CH-8092 Zurich, Switzerland

来源：

BIWIC 2007 | 2007年

关键词：

D O I：

暂无

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

This work presents a general approach to employ different complementary spectroscopic in-situ monitoring techniques in combination with multivariate analysis to estimate liquid and solid compositions in suspensions. The polymorph transformation of L-glutamic acid was selected as a representative process to apply the developed methods. ATR-FTIR and Raman spectroscopy in combination with multivariate analysis were employed to measure solute concentrations and solid composition, respectively. Additionally it was shown Raman spectroscopy can be employed to estimate solute concentrations. The kinetics of the transformation process was determined by combination of a population balance model and a parameter estimation technique. This model can be used to describe the polymorph transformation in a wide range of operating conditions.

引用

页码：65 / 72

页数：8

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