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Fig. 2 | BMC Chemistry

Fig. 2

From: Application of gas flow headspace liquid phase micro extraction coupled with gas chromatography-mass spectrometry for determination of 4-methylimidazole in food samples employing experimental design optimization

Fig. 2

Effect of different organic solvents on the extraction efficiency (sample volume 2.0 mL, temperature 110.0 °C; extraction time 45 min; 1.0 g of NaCl; gas flow rate 3.0 mL min−1; stirring speed 200 rpm; drop volume 2.0 μL; vial volume 10.0 mL; n = 3)

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