河南科学
河南科學
하남과학
HENAN SCIENCE
2013年
9期
1355-1357
,共3页
李向力%王永%王法云%章建军%武军
李嚮力%王永%王法雲%章建軍%武軍
리향력%왕영%왕법운%장건군%무군
微波消解%微分电位溶出分析技术%快速检测%面制品%砷
微波消解%微分電位溶齣分析技術%快速檢測%麵製品%砷
미파소해%미분전위용출분석기술%쾌속검측%면제품%신
microwave digestion%differential potentiometric stripping analysis technology%rapid determination%flour products%As
建立了微波消解-微分电位溶出分析法测定面制品中砷含量的方法.优化了实验条件如电沉积电位、平衡电位等，线性范围：砷0～200 ng，检出限分别为3．63 ng/mL，RSD＝3．76％（n＝7）.该法与国家标准原子荧光方法相比，具有检测速度快、成本低、结果稳定可靠等优点.测定面制品中砷含量的结果与原子荧光法无显著差异.
建立瞭微波消解-微分電位溶齣分析法測定麵製品中砷含量的方法.優化瞭實驗條件如電沉積電位、平衡電位等，線性範圍：砷0～200 ng，檢齣限分彆為3．63 ng/mL，RSD＝3．76％（n＝7）.該法與國傢標準原子熒光方法相比，具有檢測速度快、成本低、結果穩定可靠等優點.測定麵製品中砷含量的結果與原子熒光法無顯著差異.
건립료미파소해-미분전위용출분석법측정면제품중신함량적방법.우화료실험조건여전침적전위、평형전위등，선성범위：신0～200 ng，검출한분별위3．63 ng/mL，RSD＝3．76％（n＝7）.해법여국가표준원자형광방법상비，구유검측속도쾌、성본저、결과은정가고등우점.측정면제품중신함량적결과여원자형광법무현저차이.
A method for rapid determination of As in flour products by potentiometric stripping analysis technology. The experimental parameter,such as accumulation potential and equilibrium potential,were optimized. The peak currents were linear with the concentration in the range:0~200 ng. The detection limits were 3.63 ng/mL. RSD<3.76%(n=7). Compared with atomic fluorescence method,this method is more rapid and cheaper. And results obtained by this method are as reliable as atomic fluorescence method.
