Table 5 Eco-scale assessment of the developed methods.

From: UV spectrophotometric methods for simultaneous determination of ketorolac tromethamine and olopatadine hydrochloride: Application of multiple standard addition for assay of ophthalmic solution

Parameter

Value

Subtotal PPs*

Total PPs *

Reagents (water)

 Reagent amount

10–100 mL

2

0

 Reagent hazard

None

0

Instruments (UV/Vis spectrophotometer)

 Energy

 < 0.1 kWh per sample

0

0

 Occupational hazard

 

0

Waste

 

(1–10 mL)

3

0

 

No treatment

5

Total penalty points (PPs)

8

Analytical Eco-scale total score **

92

  1. *PPs means penalty points, Calculations of PPs were performed per sample, **Score = 100-total PPs.
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