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

Química Nova

Sena, Rênnio F. de¹  Gebhardt, Wilheim¹  Institute of Environmental Engineering, Aachen, Germany¹  Universidade Federal de Santa Catarina, Florianópolis, Brasil¹  José, Humberto J.¹  Tambosi, José L.¹  Moreira, Regina F. P. M.¹  Schröder, Horst Fr.¹ 

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

DOI  :  10.1590/S0100-40422010000500034

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown