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Ecological Processes

Table 2 The Komar method for Cu:L relative to L for acetate buffer

From: Determination of Cu (II) ions using sodium salt of 4-phenylsemicarbazone 1,2-naphthoquinone-4-sulfonic acid in natural and industrial environments

V Cu, mL

C Cu × 10−5, mol/L

V L , mL

C L  × 10−5, mol/L

Absorbance A

ε (L mol−1cm−1) × 105

1.0

0.68

2

1.6

0.068

0.11

1.5

1.02

3

2.4

0.115

0.12

2.0

1.36

4

3.2

0.179

0.13

  1. Molar attenuation coefficient ε = 29170; logarithm of the complex stability constants logβ = 4.53
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