Research Article
Assessment of Groundwater Quality along the Cooum River, Chennai, Tamil Nadu, India
Table 3
Methods used for analysis of quality parameters for the water samples.
| Quality parameters studied | Methods used |
| pH | pH meter | Electrical conductivity | Conductivity meter | Total dissolved solids | Evaporation method | Biochemical oxygen demand | Modified Winkler’s method | Chemical oxygen demand | Titrated with an excess of K2Cr2O7 | Sodium | Flame photometry | Lead | Atomic absorption spectrometry |
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