---

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.

---

Suhair M.yaseen AL-Adhab.B.Sc.1995 and M.Sc.chemistry in 2000.I worked as a lecturer in Al-Aqsam University-Libya in 2000, as a marketing manager of Al-Tharthar chemicals Co.Ltd in 2004, as lecturer in educational course for Kharkh waste water project staff in 2005 and 2006, until now as a lecturer in Middle Technical University.

---