食品安全质量检测学报
食品安全質量檢測學報
식품안전질량검측학보
FOOD SAFETY AND QUALITY DETECTION TECHNOLOGY
2013年
4期
1152-1154
,共3页
原子荧光%汞%检测
原子熒光%汞%檢測
원자형광%홍%검측
atomic fluorescence spectrometer%mercury%detection
目的对食品中汞元素的含量进行测定。方法分别采用两种不同的前处理方法提取食品中的汞,采用AFS-8330双道原子荧光光度计进行比较。结果线性回归方程为Y=154.4X+15.76, R2=0.9994。本方法的检出限为0.015 ng/mL,在1.0、4.0、8.0 ng/mL三个加标水平下,采用改良之前的方法做加标回收率实验,平均回收率为85%,相对标准偏差为0.6%~1.6%,采用改良之后的方法做加标回收率实验,平均回收率为94%,相对标准偏差为0.9%~1.3%。结论改进后的前处理方法提取样品时,精密度高、准确度好,能满足食品中汞元素的定性定量分析。
目的對食品中汞元素的含量進行測定。方法分彆採用兩種不同的前處理方法提取食品中的汞,採用AFS-8330雙道原子熒光光度計進行比較。結果線性迴歸方程為Y=154.4X+15.76, R2=0.9994。本方法的檢齣限為0.015 ng/mL,在1.0、4.0、8.0 ng/mL三箇加標水平下,採用改良之前的方法做加標迴收率實驗,平均迴收率為85%,相對標準偏差為0.6%~1.6%,採用改良之後的方法做加標迴收率實驗,平均迴收率為94%,相對標準偏差為0.9%~1.3%。結論改進後的前處理方法提取樣品時,精密度高、準確度好,能滿足食品中汞元素的定性定量分析。
목적대식품중홍원소적함량진행측정。방법분별채용량충불동적전처리방법제취식품중적홍,채용AFS-8330쌍도원자형광광도계진행비교。결과선성회귀방정위Y=154.4X+15.76, R2=0.9994。본방법적검출한위0.015 ng/mL,재1.0、4.0、8.0 ng/mL삼개가표수평하,채용개량지전적방법주가표회수솔실험,평균회수솔위85%,상대표준편차위0.6%~1.6%,채용개량지후적방법주가표회수솔실험,평균회수솔위94%,상대표준편차위0.9%~1.3%。결론개진후적전처리방법제취양품시,정밀도고、준학도호,능만족식품중홍원소적정성정량분석。
Objective To establish a method for determination of mercury in food. Methods According to GB/T 5009.17-2003 standard method, mercury in food was determined by AFS-8330 dual-channel atomic fluorescence spectrometer with two pretreatment methods. Results The detection limit of mercury was 0.015 ng/mL. The average recoveries was 85%at three spiked level of 1.0, 4.0, 8.0 ng/mL using national standard method, and RSD was 0.6%~1.6%. While the average recoveries was 94%using improvement treatment with RSD of 0.9%~1.3%. Conclusion The improved method has high precision, good accuracy, and it could fully meet the qualitative and quantitative analysis of mercury in food.
