高分辨连续光源原子吸收光谱法测定植物中的磷

基金项目:

国土资源地质大调查项目资助（1212010660406）

Determination of Phosphorus in Plants Using High Resolution Continuum Source-Atomic Absorption Spectrometry

摘要: 利用连续光源原子吸收光谱法，通过测定磷元素在乙炔-空气火焰条件下形成的PO双原子分子的吸光度，从而确定植物样品中磷含量。实验研究了乙炔-空气比例和燃烧器高度对PO分子吸光度的影响及其他共存元素的光谱干扰和化学干扰。通过对植物标准物质中磷的测定比对证明：利用连续光源原子吸收光谱法，在乙炔-空气火焰条件下以PO分子测定植物样品中的磷是一种简单、快速、有效的方法。
- 高分辨连续光源； /
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- 原子吸收光谱法； /
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- 磷； /
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- 植物
Abstract: A method for the determination of phosphorus (P) by molecular absorption of phosphorus monoxide (PO) using a high resolution continuum sourceatomic absorption spectrometer and an airacetylene flame has been developed. The factors affecting the determination such as instrumental conditions and parameters, spectral interferences and chemical interferences from coexistent elements and etc. were studied. The method has been applied to the determination of phosphorus in plant materials, such as leaves. Comparing with the other methods, this method provides the advantages of easy and simple of operation, more efficiency and is suitable for determination of phosphorus in plant samples.
- highresolution /
- continuum /
- source /
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- atomic /
- absorption /
- spectrometry