化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2014年
z1期
55-56,57
,共3页
离子色谱%电感耦合等离子体光谱%IonPac ICE-Borate%食品%硼酸
離子色譜%電感耦閤等離子體光譜%IonPac ICE-Borate%食品%硼痠
리자색보%전감우합등리자체광보%IonPac ICE-Borate%식품%붕산
ion chromatography%ICP-OES%IonPac ICE-Borate%food%borate
建立了离子排斥色谱柱分离、电感耦合等离子体光谱仪检测食品中硼酸的方法。样品经纯水提取并经RP柱处理后直接进样，样品基体与硼酸在专用离子排斥柱IonPac ICE–Borate上可有效分离，6 min内可完成一次样品测定。硼酸的质量浓度在5～100 mg／L范围内与色谱峰高线性良好，线性方程为y=15.347x–3.2245，相关系数为0.9996。硼酸的检出限为0.3 mg／L。7次样品重复性测定结果的相对标准偏差为1.5%，样品加标回收率在85%以上。
建立瞭離子排斥色譜柱分離、電感耦閤等離子體光譜儀檢測食品中硼痠的方法。樣品經純水提取併經RP柱處理後直接進樣，樣品基體與硼痠在專用離子排斥柱IonPac ICE–Borate上可有效分離，6 min內可完成一次樣品測定。硼痠的質量濃度在5～100 mg／L範圍內與色譜峰高線性良好，線性方程為y=15.347x–3.2245，相關繫數為0.9996。硼痠的檢齣限為0.3 mg／L。7次樣品重複性測定結果的相對標準偏差為1.5%，樣品加標迴收率在85%以上。
건립료리자배척색보주분리、전감우합등리자체광보의검측식품중붕산적방법。양품경순수제취병경RP주처리후직접진양，양품기체여붕산재전용리자배척주IonPac ICE–Borate상가유효분리，6 min내가완성일차양품측정。붕산적질량농도재5～100 mg／L범위내여색보봉고선성량호，선성방정위y=15.347x–3.2245，상관계수위0.9996。붕산적검출한위0.3 mg／L。7차양품중복성측정결과적상대표준편차위1.5%，양품가표회수솔재85%이상。
A method was developed to determine borate in food by ion chromatography coupled with inductively coupled plasma–optical emission spectroscopy (ICP–OES). Samples were extracted with water,and inject into the IC system after the RP SPE column treatment. Borate could be separated well in 6 min with the matrix in the IonPac ICE–Borate column. Borate concerntration was linear with the chromatograph peak height between 5 mg/L and 100 mg/L. The linear equation was with the correlation coefficient of 0.999 6. The detection limit was 0.3 mg/L,RSD was 1.5%(n=7), and the recovery was above 85%.
