Evaluation of sample processing methods for the polar contaminant analysis of sewage sludge using liquid chromatography - mass spectrometry (LC/MS)

Química Nova

Rênnio F. De Sena²  José L. Tambosi²  Regina F. P. M. Moreira²  Humberto J. José²  Wilheim Gebhardt¹  Horst Fr. Schröder¹ 

[1] ,Universidade Federal de Santa Catarina Departamento de Engenharia Química e Engenharia de Alimentos Florianópolis SC ,Brasil

关键词: sample processing;    LC/MS;    polar pollutants;   

DOI  :  10.1590/S0100-40422010000500034

来源: SciELO

【 摘 要 】

Monitoring of sewage sludge has proved the presence of many polar anthropogenic pollutants since LC/MS techniques came into routine use. While advanced techniques may improve characterizations, flawed sample processing procedures, however, may disturb or disguise the presence and fate of many target compounds present in this type of complex matrix before analytical process starts. Freeze-drying or oven-drying, in combination with centrifugation or filtration as sample processing techniques were performed followed by visual pattern recognition of target compounds for assessment of pretreatment processes. The results shown that oven-drying affected the sludge characterization, while freeze-drying led to less analytical misinterpretations.

【 授权许可】

CC BY-NC   
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