alexa Abstract | A Novel Gas Chromatography Method for Quantitative Determination of Benzene Content in Toluene

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A simple, precise, rapid, accurate and sensitive GC method was developed for determination of Toluene purity and quantitative determination of Benzene content in Toluene. The analysis was carried out on Perkin Elmer Clarus 600 Gas chromatograph. The optimized conditions are as follows: 1) Injector temperature 200°C, 2) Detector temperature 200°C, 3) Isocratic oven temperature 100°C for 12 min, 4) injection volume 1.5μl, 5) Split ratio 1:30 and 6) Attenuation -6. Under the optimized conditions, the linear equations were obtained in the concentration range of 4.4 - 150 ppm with good correlation coefficient values. The proposed method was found to be precise with % RSD <1 (n = 6). The method showed strict linearity (r2 > 0.999) between 4.4 ppm to 150 ppm. The percentage recovery of Benzene in the optimized method was between 99.0 % to 99.8 %.

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Author(s): Kamlesh Chauhan, Divyesh Patel, Yogendra Parmar, Asif Kaliwala

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