Determination of Trace Rare Earth Element Content in Camphor Tree Leaves by Solid-phase Spectrophotometry Research
Trace rare earth elements in camphor tree leaves was determined by solid-phase spectrophotometry with paraffin as a solid extraction agent and 8-hydroxyquinoline as a chromogenic agent.The influence was investigated of various factors on rare earth elements and the optimum analytical conditions were determined.When the mass concentration of lanthanide rare earth elements ranges from 0 to 1.6 μg/mL,there is a linear relationship between color fading degree and lanthanide rare earth elements content following Beer's law.The relative standard deviation for the testing of lanthanide rare earth elements is 2.5%,and the spike recovery rate ranges from 94.3%to 106.1%.This method exhibits high sensitivity,excellent selectivity,and satisfactory test results.
paraffin8-hydroxyquinolinesolid-phase spectrophotometryrare earth elements
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