scholarly journals Determination of Nitrosamines in Sausages by Solid Phase Extraction with Activated Carbon – GC/MS

2016 ◽  
Vol 2 (2) ◽  
pp. 1-5 ◽  
Author(s):  
Pedro Jose Sanches Filho ◽  
Melina dos Santos Hall ◽  
Elina Bastos Caramao
Keyword(s):  
Activated Carbon ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Phase Extraction

scholarly journals Application of an Activated Carbon-Based Support for Magnetic Solid Phase Extraction Followed by Spectrophotometric Determination of Tartrazine in Commercial Beverages

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
José A. Rodríguez ◽  
Karen A. Escamilla-Lara ◽  
Alfredo Guevara-Lara ◽  
Jose M. Miranda ◽  
Ma. Elena Páez-Hernández
Keyword(s):  
Activated Carbon ◽  
Solid Phase Extraction ◽  
Limit Of Detection ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Phase Extraction ◽  
Optimal Conditions ◽  
Magnetic Solid ◽  
Nonalcoholic Beverages

A method is presented for magnetic solid phase extraction of tartrazine from nonalcoholic beverages. The method involves the extraction and clean-up by activated carbon covered with magnetite dispersed in the sample, followed by the magnetic isolation and desorption of the analyte by basified methanol. The tartrazine eluted from the magnetic support was determined by spectrophotometry. Under optimal conditions, the linear range of the calibration curve ranges from 3 to 30 mg L−1, with a limit of detection of 1 mg L−1. The method was validated by comparing the results with those obtained by HPLC. A precision of<5.0% was obtained in all cases and no significant differences were observed(P<0.05).

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