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The authors reported the equations of calibration curves and the corresponding correlation coefficients. However, the coefficient of correlation was neither a proof of linearity and proportionality, nor a useful measure of the calibration variability.  I think that, at least, the proportionality should be evaluated by calculating the confidence interval of the y-intercepts to check that zero is included. Moreover to evaluate the calibration variability the relative residual standard deviations could be calculated.
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2Â¥: Originally posted by wangna526 at 2013-10-14 18:18:43
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1£© the proportionality should be evaluated by calculating the confidence interval of the y-intercepts to check that zero is included.
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2) Moreover to evaluate the calibration variability the relative residual standard deviations could be calculated.zÕâ¾ä»°Ó¦¸ÃÔõô»Ø´ðÄØ£¿
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zhushengsheng

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2Â¥: Originally posted by wangna526 at 2013-10-14 18:18:43
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zhushengsheng: ½ð±Ò+1 2013-10-14 19:38:03
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3Â¥: Originally posted by zhushengsheng at 2013-10-14 18:22:46
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1£© the proportionality should be evaluated by calculating the confidence interval of the y-intercepts to check that zero is included.
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4Â¥: Originally posted by zhushengsheng at 2013-10-14 18:54:40
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zhushengsheng

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5Â¥: Originally posted by wangna526 at 2013-10-14 19:02:56
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