岩矿测试2011，Vol.30Issue(4)：477-480,4.
微波消解-电感耦合等离子体发射光谱法测定煤中磷
Determination of Phosphorus in Coal Samples by Inductively Coupled PlasmaAtomic Emission Spectrometry with Microwave Digestion
摘要
Abstract
A method for the determination of phosphorus content in coal samples with Microwave Digestion was established by using inductively coupled plasma-atomic emission spectrometry (ICP-AES). The samples of lignitic coal, bituminous coal and anthracite coal were completely dissolved in HNO3-H2SO4-HF mixed acids at a temperature greater than 180T! By high-pressure-airproof microwave digestion. The phosphorus was measured by ICP-AES using the 178. 283 nm spectral line for analysis. The matrix interferences and spectral interferences were avoided by background correction. Si, Fe, Ca, Al and Mg have no outstanding effect on the measurement phosphorous. The linear range for phosphorus was 0-10 mg/L, and the detection limit was 0.09 mg/L. This method, when applied to the determination of phosphorus content in coal yields a relative standard deviation ( RSD) of l.89% -5. 21% and recovery factors of 94. 5% -101. 2%. The results obtained using this method are in good agreement with the values of certified reference materials.关键词
高压密封微波消解/电感耦合等离子体发射光谱法/煤/磷Key words
high-pressure and microwave digestion/ inductively coupled plasma-atomic emission spectrometry/ coal/phosphorus引用本文复制引用
陈广志,苏明跃,王昊云..微波消解-电感耦合等离子体发射光谱法测定煤中磷[J].岩矿测试,2011,30(4):477-480,4.
