海洋科学2017，Vol.41Issue(6)：55-60,6.DOI:10.11759/hykx20140705001
ICP-OES标准加入法准确测定海水中的硼
Accurate determination of boron in seawater by ICP-OES standard addition method
摘要
Abstract
As an important component of seawater, the accurate determination of boron has important significance in the study of marine environmental biogeochemistry. The traditional method for detecting boron in seawater has many disadvantages, including the need for tedious pretreatment, being time consuming and easily polluted, and having low sensitivity, making it unsuitable for analyzing numerous seawater samples. In this paper, we accurately determine the boron content in seawater by applying inductively coupled plasma–optical emission spectroscopy (ICP-OES), coupled with the dilution and standard addition methods, to solve the high salt matrix effect and inter-ference problem. The optimum operating parameters of ICP-OES, which we determined using an orthogonal array design, are an RF power of 1400 W, a nebulizer gas flow of 0.7 L/min, a viewing height of 14 mm, and a sample introduction rate of 1.5 mL/min. The correlation coefficient of the linear regression equation was above 0.999. We achieved recovery rates for this method of 94.6%–101.8% and relative standard deviations of 0.76%–1.27%. The detection limit of this method was 1.073 μg/L. Our analysis of actual seawater samples demonstrated this method to be simple, rapid, sensitive, and precise, and able to effectively correct the matrix interference as well as reduce the measurement error. This method could be used to accurately determine boron in seawater and other samples with high salt contents.关键词
硼/标准加入法/海水/电感耦合等离子体发射光谱法Key words
Boron/Standard addition method/Seawater/ICP-OES分类
化学化工引用本文复制引用
孙玲玲,宋金明,于颖,孙萱,温廷宇..ICP-OES标准加入法准确测定海水中的硼[J].海洋科学,2017,41(6):55-60,6.基金项目
FTechnology Innovation Project of the Instrument and Equip-ment of the CAS, No.ghy201701中国科学院仪器设备功能开发创新项目(ghy201701) （ghy201701）
