%0 Journal Article
%T Determination of acrylic acid from catalytic preparation lactic acid by anion-exchange chromatography<br>阴离子交换离子色谱法测定乳酸催化制备的丙烯酸
%A SHI Haining
%A WANG Hui
%A TAO Lizhi
%A WANG Zonghua
%A DING Mingyu
%A <br>石海宁
%A 王辉
%A 陶丽芝
%A 王宗花
%A 丁明玉
%J 色谱
%D 2010
%I 
%X Acrylic acid is a kind of important monomer and basic organic chemical raw material. In the process of catalytic preparation of acrylic acid from lactic acid, in order to monitor the catalytic process effectively and timely, an anion-exchange chromatographic (AEC) method has been established for the simultaneous determination of lactic acid and acrylic acid. The separation was carried out on a Metrohm A Supp 5 anion-exchange column (150 mm×4.0 mm) with 2 mmol/L Na2CO3+2 mmol/L NaHCO3 as the mobile phase. The flow rate of the mobile phase was 0.7 mL/min. A chemically suppressed conductivity detector was used. The linear ranges of calibration curves were 0.1-500 mg/L for lactic acid and 0.1-200 mg/L for acrylic acid. The detection limits with S/N=3 were 0.030 mg/L for lactic acid and 0.035 mg/L for acrylic acid. The recoveries of lactic acid and acrylic acid were 100.7%-106% and 99.6%-103% with the relative standard deviations of 2.16%-2.49% and 2.42%-2.48%, respectively. This method is accurate, speedy, sensitive and reproducible, and has been successfully used for the determination of lactic acid and acrylic acid in the catalytic reaction product.
%K anion-exchange chromatography
%K lactic acid
%K acrylic acid
%K catalytic preparation<br>阴离子交换色谱法
%K 乳酸
%K 丙烯酸
%K 催化制备
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=19E5A84B2EECC50BBD1B6C1A4C202B15&yid=140ECF96957D60B2&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=3EABEBD973E45554&eid=250DF325A002B9CC&journal_id=1000-8713&journal_name=色谱&referenced_num=0&reference_num=14