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- W3145386713 abstract "A method for simultaneously determining NO3- and NO2- in tobacco casing and flavors was developed based on ion chromatography(IC) and oscillation extraction. NO3- and NO2 – in casing and flavors were dealt with oscillation extraction by utilizing water and dichloromethane. They were purified through membrane( 0.22 μm) with column flow rate of 1 mL /min.and radient elution was performed. The samples were separated on an Ion Pac AS 11 column and detected with an electrical conductivity detector. Results showed that: ① Limits of detection of NO3- and NO2- were between 0.010 and 0.006 μg/mL,with recovery rate ranging from 90.6% to 95.4% and RSDs from3.42% to 4.61%, and linear range of 0.06 to 6.0 μg/mL and 0.02 to 2.0 μg/mL,respectively. ② NO3- and NO2- in 15 tobacco casing and flavor samples were detected with detection rate of 53.3% and 40.0%. The method was proved to be applicable in determining NO3- and NO2- in tobacco casing and flavors as timesaving, accurate and simple to process." @default.
- W3145386713 created "2021-04-13" @default.
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- W3145386713 date "2014-01-01" @default.
- W3145386713 modified "2023-09-28" @default.
- W3145386713 title "Determination of nitrate and nitrite in tobacco casing and flavors by ion chromatography" @default.
- W3145386713 hasPublicationYear "2014" @default.
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