00505nam a2200157Ia 4500008004100000082001800041100002200059245008500081260004700166300000800213650003400221650001800255653002600273653002500299700002300324170901s1991    xx            000 0 und d  a545.812b559C  aSnell, Foster Dee 0aColorimetric Methods of AnalysisbIncluding Photometric and Fluorometric Methods  aLondonbD. Van Nostrand Company Ltd.c1991  a576  aChemistry and allied sciences  aPure Sciences  aColorimetric analysis  aPhotometric analysis  aSnell, Cornelia T.