| 石灰性土壤中有效磷的电感耦合等离子体发射光谱法测定 |
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| 引用本文： | 李小娜,王金云,程丽娅,刘文长.石灰性土壤中有效磷的电感耦合等离子体发射光谱法测定[J].安徽地质,2014(4):296-299. |
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| 作者姓名： | 李小娜 王金云 程丽娅 刘文长 |
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| 作者单位： | 安徽省地质实验研究所,.安徽.合肥,230001;安徽省地质实验研究所,.安徽.合肥,230001;安徽省地质实验研究所,.安徽.合肥,230001;安徽省地质实验研究所,.安徽.合肥,230001 |
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| 摘 要： | 方法采用0.5 mol/L NaHCO3浸提石灰性土壤中的有效磷,电感耦合等离子体原子发射光谱法测定。研究了土壤滤液的酸化、颜色、浸提温度以及振荡时间等对浸提结果的影响,方法检出限(3s)为0.18 mg/kg,定量限(6s)为0.36 mg/kg,通过对石灰性土壤有效态标准物质GBW07413a、GBW07459和GBW07460的12次测定,方法准确度和精密度均小于4.5%。
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| 关 键 词： | 石灰性土壤 有效磷 滤液酸化 电感耦合等离子体发射光谱 |
Determination of available phosphorus in calcareous soil using ICP-AES |
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| LI Xiao-na,WANG Jin-yun,CHENG Li-ya,LIU Wen-zhang.Determination of available phosphorus in calcareous soil using ICP-AES[J].Geology of Anhui,2014(4):296-299. |
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| Authors: | LI Xiao-na WANG Jin-yun CHENG Li-ya LIU Wen-zhang |
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| Institution: | (Institute of Geoanalysis of Anhui Province, Hefei, Anhui 230001, China) |
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| Abstract: | This method extracted available phosphorus in calcareous soil with 0.5mol/L NaHCO3 and measured it using ICP-AES. It studied acidification, color and extraction temperature of soil filtrate and the effect of agitation on the extraction. The detection limit （3s） is 0.18 mg/kg, and quantitation limit （6s） 0.36 mg/kg.Twelve measurements of the available form in calcareous soil with primary reference materials GBW07413a,GBW07459and GBW07460 gave both accuracy and precision of the method less than 4.5%. |
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| Keywords: | Calcareous soil available phosphorus filtrate acidification ICP-AES |
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