Influence of Ionization and Sample Processing Techniques on Matrix Effect of a Pulmonary Artery Antihypertensive Drug

Al Asmari AK^1*, Ullah Z¹, Al Rawi AS², Ahmad I¹, Al Eid AS³ and Al Nowaiser NA⁴

¹Research Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia

²Department of Medicine, Prince Sultan Medical Military City, Riyadh, Saudi Arabia

³Department of Pharmacy, Prince Sultan Medical Military City, Riyadh, Saudi Arabia

⁴Department of Family and Community Medicine, Prince Sultan Medical Military City, Riyadh, Saudi Arabia

^*Corresponding Author: Al Asmari AK, Research Center, Prince Sultan Military Medical City, PO Box 7897 (S-775), Riyadh 11159, Saudi Arabia, Tel: 96614791000, Fax: +96614777714 Email: