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

doi:10.3964/j.issn.1000-0593.2008.01.046

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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

Received: 2006-09-13 Accepted: 2006-12-28

ZTFLH:

O657.3

Corresponding Authors: SUN De-zhong E-mail: sundezhong_1@yahoo.com.cn

Cite this article:

SUN De-zhong,HE Hong-liao,WEN Hong-li, et al. Determination of Si, Al and Other in Biological Samples by ICP-AES with Fusion with LiBO₂ after Dry Ashing[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(01): 195-199.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593.2008.01.046 OR https://www.gpxygpfx.com/EN/Y2008/V28/I01/195

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