This paper suggests processing method by means of multipoint test data and linear regression treatment to improve the accuracy of the test result.

本文利用多点测试数据，采用线性回归的方法处理热线法的测试数据，提高了测量结果的精确度。

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Result Standard addition test results suggests that the recoveries of chemical additive residues were 89%-95% with relative standard less than 2%.

结果：加标回收试验结果表明，残留化学助剂加标回收率为89～95%，相对标准偏差均小于2%；

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