LIMIT OF STRAY LIGHT
Weight accurately 1.2 gm of Potassium chloride (previously dried at 105oC for two hours) and dissolve & make up to 100 ml with distiled water.
Go to Photometric mode
1. press Ctr+M
2. Add wavelenth 200 nm{Select RAW DATA}
3. Auto zero
4. Then keep the Potassium chloride Solution in the sample cell holder & using water as a blank
5. Close the cell compartment
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