Simultaneous supercritical fluid derivatization and extraction of formaldehyde by the Hantzsch reaction
作者： F Reche , M.C Garrigós , A Sánchez , A Jiménez
DOI: 10.1016/S0021-9673(00)00714-7
关键词: Sample preparation 、 Supercritical fluid 、 Reagent 、 Supercritical fluid extraction 、 Extraction (chemistry) 、 Yield (chemistry) 、 Derivatization 、 Chromatography 、 Central composite design 、 Chemistry 、 Organic chemistry 、 Analytical chemistry 、 Biochemistry 、 General Medicine
摘要: A study where the Hantzsch reaction is used to produce chemical derivatization of formaldehyde in a supercritical medium presented this paper. Pressure, temperature and other parameters such as static dynamic extraction time must be optimized increase yield kinetically controlled reaction. 25−1 (resolution V) factorial design was significant affecting process terms resolution sensitivity. subsequent central composite employed find conditions maximum response. Ultraviolet–visible spectrophotometry detection technique. The optimum were for determination real finger-paints by means previous addition known quantities analyte paint. Results compared with those obtained fluid an improvement sensitivity well reduction analysis, solvent waste reagents consumption observed.
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sci-hub.se 参考文章(31)
Raymond Eller Kirk, Donald Frederick Othmer, Encyclopedia of Chemical Technology ,(1998)
T. Nash, The colorimetric estimation of formaldehyde by means of the Hantzsch reaction Biochemical Journal. ,vol. 55, pp. 416- 421 ,(1953) , 10.1042/BJ0550416
Katsushige. Takami, Kazuhiro. Kuwata, Akiyoshi. Sugimae, Masao. Nakamoto, Trace determination of aldehydes in water by high-performance liquid chromatography Analytical Chemistry. ,vol. 57, pp. 243- 245 ,(1985) , 10.1021/AC00279A056
John J. Langenfeld, Mark D. Burford, Steven B. Hawthorne, David J. Miller, Effects of collection solvent parameters and extraction cell geometry on supercritical fluid extraction efficiencies Journal of Chromatography A. ,vol. 594, pp. 297- 307 ,(1992) , 10.1016/0021-9673(92)80343-S
M.C Garrigós, F Reche, K Pernı́as, A Sánchez, A Jiménez, Determination of some aromatic amines in finger-paints for children's use by supercritical fluid extraction combined with gas chromatography Journal of Chromatography A. ,vol. 819, pp. 259- 266 ,(1998) , 10.1016/S0021-9673(98)00432-4
Š. Velikonja, I. Jarc, L. Zupančič-Kralj, J. Marsel, Comparison of gas chromatographic and spectrophotometric techniques for the determination of formaldehyde in water Journal of Chromatography A. ,vol. 704, pp. 449- 454 ,(1995) , 10.1016/0021-9673(95)00049-S
R. Cela-Torrijos, M. Miguéns-Rodríguez, A.M. Carro-Díaz, R.A. Lorenzo-Ferreira, Optimization of supercritical fluid extraction-gas chromatography of methylmercury in marine samples Journal of Chromatography A. ,vol. 750, pp. 191- 199 ,(1996) , 10.1016/0021-9673(96)00346-9
George E P Box, Norman R Draper, Empirical Model-Building and Response Surfaces ,(1987)
M.L. Marín, A. Jiménez, J. López, J. Vilaplana, Analysis of poly(vinyl chloride) additives by supercritical fluid extraction and gas chromatography Journal of Chromatography A. ,vol. 750, pp. 183- 190 ,(1996) , 10.1016/0021-9673(96)00393-7
Suresh Chandra Rastogi, A survey of formaldehyde in shampoos and skin creams on the Danish market. Contact Dermatitis. ,vol. 27, pp. 235- 240 ,(1992) , 10.1111/J.1600-0536.1992.TB03252.X