determination of copper and zinc by aas.xlsx - Cu 1 2 3 4 5...

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Cu concentration (ppm) absorbance 1 0 0.008 0 0.009 0 0.008 2 1 0.108 1 0.11 1 0.11 3 2 0.209 2 0.209 2 0.208 4 3 0.306 3 0.306 3 0.305 5 4 0.393 4 0.396 4 0.396 6 5 0.457 5 0.457 5 0.457 ZN concentration (ppm) absorbance 1 0 0.005 0 0.006 0 0.005 2 0.1 0.054 0.1 0.053 0.1 0.053 3 0.2 0.101 0.2 0.102 0.2 0.104 4 0.3 0.146 0.3 0.145 0.3 0.148 5 0.4 0.194 0.4 0.195 0.4 0.192 6 0.5 0.236 0.5 0.238 0.5 0.236 0 1 2 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 f(x) = 0.091352380952381 x + 0.01 R² = 0.99461974466878 Standard Addition Calibration Curv copper conc Absorabnce 0 0.1 0 0.05 0.1 0.15 0.2 0.25 f(x) = 0.463333333333 R² = 0.9994226251147 Standard Additi copp Absorabnce
m 0.09135238 0.018952381 b 0.0016797 0.005085557 0.99461974 0.012170613 sr 2957.83656 16 0.43812602 0.002369981 ybar 0.247333333 sxx 1.757337558 M 18 sc 0.273905496 t value 2.109815578 CI 0.577890083 lod 4.7339E-05 lloq 0.000143451 m 0.463333333 0.00711111 0.00278412 0.00084293 0.999422625 0.00201729 27695.6314 16 0.112705833 6.51111E-05 ybar 0.122944444 sxx 0.175733756 M 18 sc 0.002940755 CI 0.006204451 ave 0.25 3 4 5 6 18952380952381

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