CAJ | 학술논문

建立湿法消解-电感耦合等离子体质谱法(ICP-MS)同时测定饮用水、绿茶和大米样品中钒、铬、镍、铜、砷、硒、钼、镉、锑、铅10种元素的方法.对仪器的工作条件进行了优化,对各种干扰进行了校正和消除.各种元素的标准曲线的线性相关系数均在0.9993以上,精密度实验中各元素的RSD在0.49%~1.83%之间,检出限为8.797 ng/L~70.28 ng/L.用GBW 08607水和GBW 10052绿茶两种标准物质对方法进行了验证,测定值均在标准范围之内.并对样品进行加标回收率实验,回收率在91%~104%之间.该方法具有简便、快速、稳定、准确、灵敏度高的特点,可以用于测定水和植物样品中10种元素的检测.
건립습법소해-전감우합등리자체질보법(ICP-MS)동시측정음용수、록다화대미양품중범、락、얼、동、신、서、목、력、제、연10충원소적방법.대의기적공작조건진행료우화,대각충간우진행료교정화소제.각충원소적표준곡선적선성상관계수균재0.9993이상,정밀도실험중각원소적RSD재0.49%~1.83%지간,검출한위8.797 ng/L~70.28 ng/L.용GBW 08607수화GBW 10052록다량충표준물질대방법진행료험증,측정치균재표준범위지내.병대양품진행가표회수솔실험,회수솔재91%~104%지간.해방법구유간편、쾌속、은정、준학、령민도고적특점,가이용우측정수화식물양품중10충원소적검측.
@@@@A method for simultaneously detection of V, Cr, Ni, Cu, As, Se, Mo, Cd, Sb, Pb in drinking water, green tea and rice samples by wet digestion and inductively coupled plasma mass spectrometer (ICP-MS) was developed. The working conditions of instrument were optimized and the multiple interferences were corrected and slaked. Satisfactory linearity of standard curves of ten elements were obtained, and giving all their linear coefficient above 0.999 3. The RSD of above elements were 0.49%~1.83%in the experiments of precision, and the detection limit of the analytes were in the range of 8.797 ng/L~70.28 ng/L. Two certified reference materials, GBW 08607 (water) and GBW 10052 (green tea) were analyzed and the results were in good agreement with certified values. In the recovery experiment controlled by adding stand substance, the recoveries were in the range of 91%~104%. The method was simple, quick, stable, accurate and had high sensitivity, it was suitable for determining the ten elementsinwaterandphytonsamples.