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1 引言 我们厨ICP-AES分析测定了一种在福建某离子吸附型稀土矿区生长的铁芒萁(Driranopteris dichatoma)的植物,发现叶中含有0.31%的稀土元素,植物体内含有这样高的稀土元素尚未见过报道。同时又对比了干法灰化与增压酸溶处理植物样品的两种方法,结果相符。总量与国家标准方法测定的结果吻合较好。 2 实验部分 样品处理采用干法灰化和增压酸溶法。配制标准液和处理样品用的试剂,各种单一稀土氧化物汾光谱纯,其它试剂均为分析纯。标准溶液的配制采用三标准校正,配制成混合标准工作液,酸度控制在
1 INTRODUCTION Our kitchen ICP-AES analysis determined a species of Driranopteris dichatoma grown in an ion-adsorbed rare-earth mining area in Fujian Province and found that the leaves contained 0.31% rare earth elements and that plants contained such high levels of rare earth elements Have not seen the report yet At the same time, the two methods of dry ash treatment and pressurized acid treatment of plant samples were compared, and the results were consistent. The total amount is in good agreement with the result of the national standard method. 2 experimental part of the sample processing using dry ashing and pressurized acid dissolution method. Preparation of standard solution and sample processing reagents, a variety of single rare earth oxide Fen pure spectrum, the other reagents were of analytical grade. Preparation of standard solution using three standard calibration, formulated into a mixed standard working solution, acidity control