Abstract：An alkaline sample digestion procedure using fusion with lithium metaborate (LiBO2) after dry ashing was developed. Silicon, aluminium and other, a total of 10 elements in different kinds of biological samples, were measured by ICP-AES. The detection limit of this method was 0.15 μg·mL-1 for Si and 0.03 μg·mL-1 for Al. The accuracy and precision of the method were demonstrated by analyzing certified reference materials poplar leaves (GBW07604). The precision was less than 3% and the accuracy was -0.03% for Si and -3% for Al. This method was applied to the certification of a series of ten biological reference materials. The results were satisfied.
Key words：Fusion with lithium metaborate;Silicon;Aluminium;ICP-AES;Biological materials
孙德忠,何红蓼,温宏利,马生凤,巩爱华,殷绍泉. 干灰化结合偏硼酸锂碱熔灰分ICP-AES测定生物样品中的硅铝等元素[J]. 光谱学与光谱分析, 2008, 28(01): 195-199.
SUN De-zhong, HE Hong-liao, WEN Hong-li, MA Sheng-feng, GONG Ai-hua, YIN Shao-quan. Determination of Si, Al and Other in Biological Samples by ICP-AES with Fusion with LiBO2 after Dry Ashing. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(01): 195-199.
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