increased to 250 C using a heating ramp of 30 C/min. This temperature was then maintained for15 min.
Helium was used as the carrier gas at a flow of 1 mL/min; the injector temperature was 250 C, with split less injection and a purging time of 1 min.
The mass spectra were obtained through ionization by electronic
impact (EI) at 70 eV.
Data acquisition was accomplished in the SIM mode, the monitored ions being m/z 71 and 44.
Once the chromatograms were obtained, identification was performed by comparing the mass spectra obtained with the database HP Chemstation-NIST 05 Mass Spectral search program, version 2.0d.
They were also compared with a standard for acrylamide analyzed under the same conditions. For quantification, a calibration curve with a range of 0.010e50 mg/mL (y ¼ 38465x þ 2751.4, R2 ¼ 0.9977) was developed.
increased to 250 C using a heating ramp of 30 C/min. This temperature was then maintained for15 min. Helium was used as the carrier gas at a flow of 1 mL/min; the injector temperature was 250 C, with split less injection and a purging time of 1 min. The mass spectra were obtained through ionization by electronicimpact (EI) at 70 eV. Data acquisition was accomplished in the SIM mode, the monitored ions being m/z 71 and 44. Once the chromatograms were obtained, identification was performed by comparing the mass spectra obtained with the database HP Chemstation-NIST 05 Mass Spectral search program, version 2.0d.They were also compared with a standard for acrylamide analyzed under the same conditions. For quantification, a calibration curve with a range of 0.010e50 mg/mL (y ¼ 38465x þ 2751.4, R2 ¼ 0.9977) was developed.
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