Simple Modification of Karl-Fischer Titration Method for Determination of Water Content in Colored Samples

Table 2

Spectrophotometric method values and actual values of moisture in set of samples.

Sample no.	Samples	Values obtained by spectrophotometric titration method (%)	Actual values	Absolute error
1	HYDRANAL standard 5.00	0.634	0.500 (0.522)	0.134 (0.112)
2	AABE + 7.5% water	19.919	20.172	0.253
3	AABE + 4% water	17.627	16.672	0.955
4	PEG + 7.5% water	8.732	7.920	0.813
5	PEG + 4% water	5.105	4.238	0.867
6	PEG	0.220	0.188	0.032