Determination of Residual solvent in Cilostazol By Solution-Solid Headspace Gas Chromatography
Qinghua Tang, Yange Li (Guangxi Guilin pharmaceutical Co.,Ltd. Guilin 541002)
To develop solution-solid headspace gas chromatography for the determination of residual solvent in Cilostazol. Using DB- FFAP Wide Bore capillary column and n-propanol as internal standard.The linear concentration region of ethanol, DMF were 1.5￣ 30.2μ g·mL-1 (r=0.9993), 1.8￣36.4μ g·mL-1 (r=0.9968), respectively.The relative recovery of ethanol, DMF were 104.8%, 105.2 %, respectively. The lowest test limits of ethanol, DMF were 0.01 μg.g-1,0.16μg·g-1, respectively.