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

Quimica nova

Gebhardt, Wilheim¹  Schröder, Horst Fr.¹  Sena, Rênnio F. de²  José, Humberto J.²  Tambosi, José L.²  Moreira, Regina F. P. M.² 

[1] Institute of Environmental Engineering, Aachen, Germany;Universidade Federal de Santa Catarina, Florianópolis, Brasil

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 sewagesludge has proved the presence of many polar anthropogenic pollutants sinceLC/MS techniques came into routine use. While advanced techniques may improvecharacterizations, flawed sample processing procedures, however, may disturbor disguise the presence and fate of many target compounds present in this typeof complex matrix before analytical process starts. Freeze-drying or oven-drying,in combination with centrifugation or filtration as sample processing techniqueswere performed followed by visual pattern recognition of target compounds forassessment of pretreatment processes. The results shown that oven-drying affectedthe sludge characterization, while freeze-drying led to less analytical misinterpretations.

【 授权许可】

CC BY