| The desulphurized crude oil was subjected to ultra violet visible spectrophotometric analysis. |
| Extraction spectrophotometric determination of vanadium in natural waters and aluminium alloys using pyridyl azo resorcinol and iodo-nitro-tetrazolium chloride. |
| Superoxide anion was estimated by spectrophotometric measurement of the reduction of nitro blue tetrazolium. |
| A new spectrophotometric method for the detection and determination of keta sugar and trioses. |
| Fluorimetric and spectrophotometric analysis in pure phosphate buffered saline and solvent mixtures has been used throughout the study. |
| The supernatant was taken for spectrophotometric measurements. |
