电热消解-电感耦合等离子体发射光谱法测定石灰石浆液中的铝  

Determination of Aluminum in Limestone Slurry by Electric Heating Digestion-Inductively Coupled Plasma Atomic Emission Spectrometry

作　　者：刘佳蓉 张勤 吕佳慧 施益品 包倩倩 Liu Jiarong;Zhang Qin;Lyu Jiahui;Shi Yipin;Bao Qianqian(Zhejiang Zhejiang Energy R&D Institute Co.,Ltd.,Hangzhou 311121,China;Key Laboratory of Energy Conservation&Pollutant Control Technology for Thermal Power of Zhejiang Province,Hangzhou 311121,China)

机构地区：[1]浙江浙能技术研究院有限公司,浙江杭州311121 [2]浙江省火力发电高效节能与污染物控制技术研究重点实验室,浙江杭州311121

出　　处：《山东化工》2022年第8期122-124,共3页Shandong Chemical Industry

基　　金：浙江省火力发电高效节能与污染物控制技术研究重点实验室支持项目(ZERD-KJ-2019-004)。

摘　　要：建立了一种电热消解-电感耦合等离子体发射光谱法(ICP-AES)用于石灰石浆液中铝元素的检测方法。样品经6 mL稀硝酸(硝酸与水体积比1∶1)、2mL稀盐酸(盐酸与水体积比1∶1)于100℃下电热消解后,利用ICP-AES进行定量分析。对电感耦合等离子体发射光谱仪的谱线、RF功率和泵速进行了考察,选择谱线为396.152 nm、RF功率为1150 W、泵速为50 r/min为最优条件。在优化的条件下进行检测,本方法的检出限为0.0018 mg/L,加标回收率在93.5%~96.0%,相对标准偏差为1.97%。该方法具有操作方便,分析快速、准确,检测限低,重现性好等优点,适用于日常的石灰石浆液中铝的检测。An electric heating digestion-inductively coupled plasma atomic emission spectrometry(ICP-AES)method was established for the detection of Al in limestone slurry.The samples were digested with 6 mL diluted nitric acid(V(nitric acid)∶V(water)=1∶1)and 2 mL diluted hydrochloric acid(V(hydrochloric acid)∶V(water)=1∶1)at 100℃,and then quantitatively analyzed by ICP-AES.The spectrum lines,RF power and pump speed of inductively coupled plasma emission spectrometer were investigated.The spectrum line of 396.152 nm,with the RF power of 1150 W and the pump speed of 50 r/min were selected.Under the optimized conditions,the method was used for the detection of aluminum in limestone slurry with the detection limit of 0.0018 mg/L,recoveries between 93.5% and 96.0%,and the relative standard deviation of 1.97%.This method is simple,efficient and accurate with low detection limit and high reproducibility,which can be applied to the daily detection of Al in limestone slurry.

关 键 词：电热消解 电感耦合等离子体光谱法 铝 石灰石浆液 分析 

分 类 号：TQ177.2[化学工程—硅酸盐工业]