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Future Journal of Pharmaceutical Sciences

Table 3 FTIR signals of Vitamin C

From: Development and validation of a stability indicating green analytical method for the simultaneous estimation of l-glutathione, n-acetyl l-cysteine and Vitamin C in marketed formulation using UV–visible spectroscopy

IR range (cm−1)

Functional groups

Observed values (cm−1)

1085–1050

C–O

1076.0

3400–3100

O–H

3314.9

1350–1320

C–H

1321.1

1680–1600

C=C

1673.4

1760–1700

C=O

1754.6

1300–1160

RCOOR

1120.8

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