CAJ | 학술논문

面粉样品经简单的超声波萃取,离心分离,上清液过C18固相萃取小柱后,采用电导抑制离子色谱法测定了面粉中氟、氯、溴、碘、亚硝酸根、硝酸根、硫酸根、磷酸根、溴酸根9种阴离子的含量.测定结果的相对标准偏差均小于8%,平均加标回收率在87.5%～96.0%之间.方法快速、简单,可满足面粉中9种阴离子的同时测定.
면분양품경간단적초성파췌취,리심분리,상청액과C18고상췌취소주후,채용전도억제리자색보법측정료면분중불、록、추、전、아초산근、초산근、류산근、린산근、추산근9충음리자적함량.측정결과적상대표준편차균소우8%,평균가표회수솔재87.5%～96.0%지간.방법쾌속、간단,가만족면분중9충음리자적동시측정.
The flour samples were extracted by ultrasonic wave followed by centrifugal separation.The clear supernatant was eluted through the SPE-C_(18) column and the eluent was detected by ion chromatography.Nine inorganic anions of fluorine,chlorine,bromine,iodine,nitrite,nitrate,sulfate,phosphate and bromate in flour were quantitative detection at the same time.The RSD of the results were less than 8% and the mean recoveries were between 87.5% and 96.0%.The developed method was simple,rapid and suitable to simultaneous determination of inorganic anion in flour.