TY  - SER
AU  - Khan, M. Q
AU  - Shah, S. H.
AU  - Mushk-I-Alam, 
TI  - Method of Washing Filter Papers to Remove Nitrogen Contamination
KW  - Method of Washing Filter Papers
KW  - Remove Nitrogen Contamination
KW  - Whatman Filter Papers Contain Inorganic Nitrogen Impurities
ER  -