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《Journal of Anhui Agricultural Sciences》 2009-15
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Determination of Effective Boron in the Soil for Boletus tomentipes Growth by ICP-MS

WANG Yuan-zhong et al(Institute of Medicinal Plant,Yunnan Academy of Agricultural Sciences,Kunming,Yunnan 650223)  
[Objective] The purpose of the research was to supply method support for the content analysis on effective boron in soil.[Method] The weight of soil sample was 10 g,the soil sample was extracted in boiling water with water-tosoil ratio of 2∶1 for 15 min,the extraneous liquid was filtrated by dry filtration as soon as it was slightly cooled and the filtrate was directly used in ICP determination.[Result] Under the optimized experimental condition,the results of 11 parallel determinations indicated that the detection limit of boiling water extraction—ICP-MS method was 0.009 μg/g.When this method was applied in the determination of the available content of effective boron in standard soil matters,all the determination values were in their prescribed limits and their relative standard deviation was 2.66%.The recovery of standard addition test performed on the standard matter(GBW07416) C for analysis on the effective components in soil was 93.3%-101.3%.[Conclusion] Compared with routine analysis method,the detection limit of this method was lower,its sensitivity was higher and its linear dynamic range was wider.The determination on the effective boron in the soil for Boletus tomentipes growth by this method was accurate and reliable and it could be used in the fast determinations of effective boron in mass soil samples and ultra-trace effective boron in soil samples.
【Fund】: 云南省社会发展科技计划项目(2007C083M)
【CateGory Index】: S646.3
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