电感耦合等离子体-质谱法测定污水中的硼

Determination of Boron in Sewage by Inductively Coupled Plasma-Mass Spectrometry

建立电感耦合等离子体质谱法分析污水中硼的方法。污水样品用2%HNO 3稀释,以锂为内标元素,在线加入内标,以校正基体效应和信号漂移。实验采用标准加入法来分析污水中硼含量,结果表明硼在污水样品中的平均加标回收率在97.95%~98.68%之间,RSD小于0.02%,实验中硼的检出限为0.037 mg/L。卤水中硼的含量在1.15 mg/L^1.18 mg/L之间。

A method for the determination of Boron in sewage by Inductively coupled plasma mass spectrometry has been developed.The sample was diluted with 2%HNO 3,and the internal standard was added on-line with lithium as internal standard element to correct matrix effect and signal drift.The standard addition method was used to analyze the boron content in sewage.The results showed that the average recovery of Boron in sewage sample was between 97.95%and 98.68%,RSD was less than 0.02%,and the detection limit of Boron in sewage sample was 0.037 mg/L.The content of Boron in brine is between 1.15 mg/L and 1.18 mg/L.