Telaii dilakukan penentuan kadax' vitamin dalam tablet vitaminB kompleks dengan cara kolorimetri dan cara spektrofluorometri,dan penentuan kadar vitamin Bg dalam tablet vitamin B kompleks .dengan cara spektrofluorometri, cara kolorimetri untuk penentuan kadar vitamin ternyata tidak dapat dilakukan, karena Nicotinaraidakan ikut diendapkan bersama-sama vitamin B^ oleh ammonium reineckat. Penentuan kadar denj^?an cara spektrolluorometriuntuk vitamin dan vitamin fl^., ternyata mernberikan basil yangcukup memuaskan, tetapi pacia penentuan kadar vitamin Bp dengancara spektrofluorometri konsuntrasi vitarnlii Bg bai'us dinaikkan10 kali lebih besar dari prosedur semula»

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A determination of vitamin cdncentratioxi in vitamin B eoraplex

tablets had been carried out with the Colorimetrio method

and the Spectrofluorometric method, and a determination of vi

tamin B2 concentration in vitamin B complex tablets v/ith the'~ ^

Spectrofluorometric method. The Goloriraetric method for the

determination of vitamin concentration could not be put in

to practice becauce the Kicotinarnide would also be precipitated

together with vitamin by Ammonium Reineckat. A determination

of concentration with the Spectrofluorometric method of vitamin

B^ and vitamin Bg give evidence of a isatisfying result, but in

the' determination of vitamin Bg concentration with the Spectro

fluorometric method, the vitamin concentration had to be

raised ten times from the original procedure.