微波消解ICPOES法测定旱芹与西芹中的21种矿物元素

Determination of 21 mineral elements in celery and parsley by microwave digestion-ICP-OES

摘要: 建立了微波消解-电感耦合等离子体原子发射光谱法（ICP-OES）法测定旱芹与西芹中的21种矿物元素的分析方法。利用HNO3+H2O2湿法微波消解制样,应用全谱直读ICP-OES对咸阳市售旱芹与西芹中的Na、K、Ca、S、P、Mg、Al、Si、Fe、Zn、Sr、Mn、B、V、Ba、Cu、Ga、Cr、Ti、Cd、Pb等21种矿物元素进行了测定。结果表明,各待测元素的检出限为1.0⁴40μg/L,相对标准偏差（RSD）在0.11%¹0.7%之间,标准样品回收率测定在89.0%¹09.6%之间。实验结果可为芹菜的应用研究提供基础数据。

Abstract: A method was set up to analyze the mineral elements in celery and parsley by inductively coupled plasma optical emission spectrometer ( ICP- OES) . After the sample was prepared by wet microwave digestion procedure with HNO3+ H2O2, 21 mineral elements including Na, K, Ca, S, P, Mg, Al, Si, Fe, Zn, Sr, Mn, B, V, Ba, Cu, Ga, Cr, Ti, Cd and Pb in celery and parsley were determined by ICP-OES.The detective limits were in the range of1.0~440μg /L.The RSD of results was between 0.11% and 10.7%.The recovery rate of standard sample was from89.0% to 109.6%.These results provided basic data for further developing and applying of the Celery.