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标题：Analysis of NO 2 - and NO 3 - in Apples, Pears and Oranges with Ion Chromatography
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作者：Dongwu Liu ; Hong Guo ; Ling Kong 等
期刊名称：Advance Journal of Food Science and Technology
印刷版ISSN：2042-4868
电子版ISSN：2042-4876
出版年度：2016
卷号：11
期号：1
页码：49-53
DOI：10.19026/ajfst.11.2353
出版社：MAXWELL Science Publication
摘要：Ion Chromatography (IC) can yield the precise and reproducible data if the experimental condition is kept constant. In this study, the anions NO^{2- and NO^{3- in apples, pears and oranges were determined with the technique of IC. A Dionex ICS-2000 ion chromatograph with a Dionex gradient pump, eluent degassing module and conductivity detector was used to detect NO^{2- and NO^{3-. Anions were separated on a DIONEX Ionpac AS19 A-4 mm ion-exchange column, with an Iopac AG AS19 A-4 mm guard column and detected after suppression with ASRS 300 anion electrical self-regenerating suppressor. The results indicated that the technique of IC was suitable for the rapid, precise and accurate determination of NO^{2- and NO^{3- in apples, pears and oranges. In addition, the acceptable detection limits were obtained for NO^{2- and NO^{3- and the analysis time was significantly shortened with the technique of IC. The data will provide theories and rapid methods for the supervision of fruit quality.}}}}}}}}