Determination of the calcium content in foods by dry ssh and wet digestion-flame atomic absorption spectrophotometry
To determine of Calcium content in the foods,both dry ash and wet digestion methods were used. There was good linear relationship in the range of 1~10μg·mL-1 with a regression coefficient of 0.9932.The results showed that among all the samples dried small shrimps had the highest content of Calcium which was 766.61mg/100g, while the content of Calcium in Lentinula edodes was the lowest which was 5.16mg/100g. The recovery rate of dry ash samples was 90.20% to 103.20%, while wet digestion samples was 90.50% to 104.95%. RSD values of two methods were all lower than 4%.
flame atomic absorption spectrophotometrydry ashwet digestioncontent of calcium
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NSTL
万方数据
维普
