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Determination of Cadmium in Tea by Microwave Digestion-Graphite Furnace Atomic Absorption Spectrometry

Xifeng Yin

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Abstract

Tea samples were treated with microwave digestion system.The results showed that this method cluld greatly reduce magnitude of digestant,and decrease its processing time.Cd in tea was determined by graphite furnace atomic absorption spectrometry.The method was rapid,simple and accuracy.The relative standard deviation of lead was 8.9%~12.5%,and the detection limit was 0.002 mg/kg.

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What this paper is about

Tea samples were treated with microwave digestion system.The results showed that this method cluld greatly reduce magnitude of digestant,and decrease its processing time.Cd in tea was determined by graphite furnace atomic absorption spectrometry.The method was rapid,simple and accuracy.The relative standard deviation of lead was 8.9%~12.5%,and the detection limit was 0.002 mg/kg.

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Available abstract

Tea samples were treated with microwave digestion system.The results showed that this method cluld greatly reduce magnitude of digestant,and decrease its processing time.Cd in tea was determined by graphite furnace atomic absorption spectrometry.The method was rapid,simple and accuracy.The relative standard deviation of lead was 8.9%~12.5%,and the detection limit was 0.002 mg/kg.

Key concepts: Graphite furnace atomic absorption, Microwave digestion, Detection limit, Cadmium, Relative standard deviation, Graphite, Atomic absorption spectroscopy, Analytical Chemistry (journal)

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Determination of Cadmium in Tea by Microwave Digestion-Graphite Furnace Atomic Absorption Spectrometry — Research Paper | ScholarLens