| Autor: |
R. Gonzalez, O. Bravo, G. Cossio, M. Martinez, V. Fajer, C. Rodriguez |
| Rok vydání: |
1996 |
| Předmět: |
|
| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.231073 |
| Popis: |
cromatography achieving a sensitivity better than 0.001°. The operation principle and technical characteristics ofthis instrumentare described. It was also designed and calibrated a liquid gel cromatography column system suitable for sugar cane juiceanalysis. It was separated and analyzed the medium molecular weight carbohydrates and demonstrated the strong influence ofthese substances in the conventional polarimetric determinationsKeywords: laser polarimeter, polarimeter, chromatographic detector, polarimetric detector1 INTRODUCTIONThe magneto-optical polarimeter LASERPOL 1O1M (LP1O1M) has been designed and constructed' for high sensibilityapplications.One ofthe applications developed on the basis ofthe measurement principle conceived consists in the use of theLP1O1M as a detector for liquid gel chromatography2.The employment ofchromatograhic methods such as the filtration through gels3 allowed it to be established that colloids (PS)and carbohydrates ofmedium molecular weight(MMW) vary their concentration in thejuice during the growth and developmentofthe sugarcane plants.These studies require liquid chromatograhic separations through gels, which permit the separation of PS and MMW The |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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