ISBN-13: 9783659843556 / Angielski / Miękka / 2016 / 60 str.
ISBN-13: 9783659843556 / Angielski / Miękka / 2016 / 60 str.
Studying of gas chromatographic behaviors of phenolic compounds is submitted as retention times data and chromatograms . This phenolic compounds usually are used as pharmaceuticals preservatives. The determination process of methyl para hydroxy benzoate is included two steps: 1st step is separation by extraction of methyl paraben from insulin preparations and 2nd step is gas chromatographic quantification.