DETERMINATION OF OXALATE IN OXYGEN DELIGNIFICATION LIQUOR BY HEADSPACE GAS CHROMATOGRAPHY
This paper demonstrated a headspace gas chromatographic technique for the determination of oxalate in oxygen delignification liquors. In presence of permanganate at an acidic medium and an elevated temperature, carbon dioxide is generated from both the rapid reaction with oxalate and slow reaction with the some co-existing organic species. Using a multiple headspace extraction (MHE)measurement, the kinetics of formation of the carbon dioxide from the co-existing organic species in the sample liquor can be determined, and thus a correction can be made for minimizing the interferences. The present method is simple, accurate, and can be easily automated.
headspace multiple headspace eztraction ozalate ozygen delignification liquor.
Zhu Hongxiang Song Hainong Chai Xinsheng J. Samp
School of Light Industrial and Food Engineering, Guangxi University, Nanning, Guangxi 530004, China Institute of Paper Science and Technology, Georgia Institute of Technology, Atlanta, GA 30332, USA
国际会议
广州
英文
805-810
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）