Table 8 Penalty points for greenness assessment of the proposed method by ECO scale tool.

From: Spectrofluorimetric determination of butylated hydroxytoluene and butylated hydroxyanisole in their combined formulation: application to butylated hydroxyanisole residual analysis in milk and butter

Hazard

Penalty points (dosage form)

Penalty points (milk)

Penalty points (butter)

Acetonitrile

8

8

8

Sulphuric acid

2

2

2

Ammonium sulphate

–

0

–

Hexane

–

–

8

Instruments energy

0

0

0

Occupational hazard

0

0

0

Waste

8

8

8

Total penalty points

18

18

26

Analytical eco-scale total score*

82

82

74

  1. *> 75 represents excellent green analysis, > 50 represents acceptable green analysis, < 50 represents inadequate green analysis.
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