Q85. | Most commonly used radiation source in atomic absorption spectroscopy is: |
Q86. | Length of column in gas chromatography is: |
Q87. | In IR spectrum, the functional group region is from: |
Q88. | A substance used for modification of silica gel for reversed phase TLC is: |
Q89. | The solvent for Karl Fisher reagent is: |
Q90. | Commonly used carrier gas in GC is: |