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2009•Lishizhen Medicine and Materia Medica ResearchRequires access

Determination of Calcium,Magnesium,Iron,Zinc,Copper and Manganese in Lysimachia congestiflora Hemsl by Flame Atomic Absorption Spectrometry with Microwave Digestion

Jiang Zhong-guo

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Abstract

Objective To establish a method for determination of calcium,magnesium,iron,zinc,copper,manganese in Lysimachia congestiflora Hemsl by flame atomic absorption spectrometry.MethodsThe sample was diluted by microwave with HNO3 and the contents were determined by calibration curve method.ResultsThe content of Ca was 7.69mg/g,Mg 3.16mg/g,Fe 2.33mg/g,Zn 0.0618mg/g,Cu 0.0144mg/g,Mn 0.431mg/g.RSD of the method was in the range of 3.34%～6.21 %,and recovery rate was in the range of 97.9%～108 %.ConclusionThe method is accurate and satisfactory.

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What this paper is about

Objective To establish a method for determination of calcium,magnesium,iron,zinc,copper,manganese in Lysimachia congestiflora Hemsl by flame atomic absorption spectrometry.MethodsThe sample was diluted by microwave with HNO3 and the contents were determined by calibration curve method.ResultsThe content of Ca was 7.69mg/g,Mg 3.16mg/g,Fe 2.33mg/g,Zn 0.0618mg/g,Cu 0.0144mg/g,Mn 0.431mg/g.RSD of the method was in the range of 3.34%～6.21 %,and recovery rate was in the range of 97.9%～108 %.ConclusionThe method is accurate and satisfactory.

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Available abstract

Objective To establish a method for determination of calcium,magnesium,iron,zinc,copper,manganese in Lysimachia congestiflora Hemsl by flame atomic absorption spectrometry.MethodsThe sample was diluted by microwave with HNO3 and the contents were determined by calibration curve method.ResultsThe content of Ca was 7.69mg/g,Mg 3.16mg/g,Fe 2.33mg/g,Zn 0.0618mg/g,Cu 0.0144mg/g,Mn 0.431mg/g.RSD of the method was in the range of 3.34%～6.21 %,and recovery rate was in the range of 97.9%～108 %.ConclusionThe method is accurate and satisfactory.

Key concepts: Zinc, Manganese, Copper, Magnesium, Microwave digestion, Chemistry, Calibration curve, Atomic absorption spectroscopy

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Determination of Calcium,Magnesium,Iron,Zinc,Copper and Manganese in Lysimachia congestiflora Hemsl by Flame Atomic Absorption Spectrometry with Microwave Digestion — Research Paper | ScholarLens