compound

linearity limit (ppm)

Molar absorptivity (L·mol⁻·cm⁻

Sandell’s Index g·cm²⁻

Sensitivity (ppm)

Detection limit (ppm)

1

0.25 - 4.0

3.22 × 10⁴

0.0041

0.0129

0.066

2

0.25 - 4.0

4.24 × 10⁴

0.0035

0.0106

0.057

3

0.25 - 6.0

2.43 × 10⁴

0.0048

0.0137

0.077

4

0.25 - 6.0

4.82 × 10⁴

0.0030

0.0122

0.049

5

0.25 - 5.0

2.64 × 10⁴

0.0097

0.0523

0.156

6

0.25 - 5.5

3.19 × 10⁴

0.0088

0.0215

0.143