Table 9 Calculation of the analytical Eco-Scale score for the developed RP-HPLC method for IMG assay.

From: Stability indicating green HPLC method for Imeglimin hydrochloride determination in pharmaceutical tablets with comprehensive assessment

Parameters

Penalty Points (PPs)

Reagents

Type

Hazard

Amount

Subtotal PPs

 

Ethanol

two pictograms, danger

10–100 mL

4*2

8

Octane sulfonic acid

one pictogram, danger

1 mL

2*1

2

Total PPs for reagents (∑ hazard* amount)

10

Instrument

Energy consumption

≤ 1.5 kW/h (1)

1

Emission of vapors or gasses

none

0

Waste

Waste generated

> 10 mL

5

Waste treatment

No treatment

3

Total PPs for waste

8

Total PPs

19

Analytical Eco-Scale Score (= 100-PPs)

81