微波消解—电感耦合等离子体原子发射光谱法测定胶基糖果中重金属铬的含量

Inductively coupled plasma-atomic emissions spectrometric(ICP-AES) determination of chromium in chewing gum with microwave digestion

研究微波消解-电感耦合等离子体原子发射光谱法测定胶基糖果中重金属铬含量的仪器参数条件。采用压力消解罐消解对样品进行预处理,然后用电感耦合等离子体原子发射光谱法对样品中铬含量进行测定。在所选择的最佳仪器条件下,方法的线性良好,在线性范围0～0.500mg/L内,相关系数达0.999959,测试样品的准确度和精密度也符合要求。用微波消解进行糖果产品的预处理,电感耦合等离子体原子发射光谱法测定操作简便快捷,结果准确可靠,是适合检验检测行业的一种新型、快速的检测手段。

To study the instrument conditions and determine the content of chromium in chewing gum by microwave digestion and ICP-AES. The samples were pretreated by microwave digestion, and determined by ICP-AES. The method had good linearity and the linear range was from 0 to 0.500 mg/L and the correlation coefficient was up to 0.999959. The accuracy and precision can meet the requirements under the optimized instrument conditions. The results indicated that it is easy, fast, and accurate pretreating by microwave digestion and determining by ICP-AES, and is suitable for inspection.