化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2013年
5期
84-86
,共3页
王桂苓%李琳琳%丁轶聪%张岩岩%薛艳
王桂苓%李琳琳%丁軼聰%張巖巖%薛豔
왕계령%리림림%정질총%장암암%설염
罗丹明B%高效液相色谱法%荧光检测器%辣椒
囉丹明B%高效液相色譜法%熒光檢測器%辣椒
라단명B%고효액상색보법%형광검측기%랄초
Rhodamine B%high performance liquid chromatography%fluorescence detector%capsicum
建立了快速测定辣椒中非法添加物罗丹明B的含量的方法。以甲醇水溶液超声提取,用高效液相色谱法(荧光检测器)测定,峰面积外标法定量,在优化条件下,罗丹明B的质量浓度在0~100.0 ng/mL范围内与色谱峰面积呈良好的线性关系,线性相关系数r=0.9997,检出限为2.5 ng/g,加标回收率为94.7%~103.3%,测定结果的相对标准偏差为0.92%(n=6)。该方法样品处理简单、快速,适用于辣椒中罗丹明B的日常检测。
建立瞭快速測定辣椒中非法添加物囉丹明B的含量的方法。以甲醇水溶液超聲提取,用高效液相色譜法(熒光檢測器)測定,峰麵積外標法定量,在優化條件下,囉丹明B的質量濃度在0~100.0 ng/mL範圍內與色譜峰麵積呈良好的線性關繫,線性相關繫數r=0.9997,檢齣限為2.5 ng/g,加標迴收率為94.7%~103.3%,測定結果的相對標準偏差為0.92%(n=6)。該方法樣品處理簡單、快速,適用于辣椒中囉丹明B的日常檢測。
건립료쾌속측정랄초중비법첨가물라단명B적함량적방법。이갑순수용액초성제취,용고효액상색보법(형광검측기)측정,봉면적외표법정량,재우화조건하,라단명B적질량농도재0~100.0 ng/mL범위내여색보봉면적정량호적선성관계,선성상관계수r=0.9997,검출한위2.5 ng/g,가표회수솔위94.7%~103.3%,측정결과적상대표준편차위0.92%(n=6)。해방법양품처리간단、쾌속,괄용우랄초중라단명B적일상검측。
A method for the determination of illegal additive Rhodamine B in capsicum by high performance liquid chromatography(fluorescence detection)was established. The sample was extracted ultrasonically with methanol-water (volume ratio was 80∶20)and Rhodamine B was quantified by the peak area external standard method. Under the optimal conditions, good linearity was obtained in the range of 0-100.0 ng/mL for Rhodamine B with the correlation coefficient of 0.999 7. The detection limit was 2.5μg/kg. The average recoveries was 94.7%-103.3%, and the relative standard deviation of detection results was 0.92%(n=6). The method is simple, rapid and accurate, which can be used for the routine analysis of the illegal additives Rhodamine B in capsicum.