《Table 1 Standard curves and correlation coefficients》

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《Accumulation Characteristics and Safety Evaluation of Heavy Metals in Four Kinds of Aquatic Products from Lake Taihu》

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2.3.3 Sample determination.Atomic absorption spectrophotometer was used to detect standard solution and sample solution.The correlation of the drawn standard curve was more than 99.1%，and linear equation and correlation coefficient were shown as Table 1.Cd，Cu and Zn were detected by flame atomic absorption spectrophotometer，while Pb was detected by graphite furnace atomic absorption spectrophotometer，and they were all repeated for three times.