Abdelbary, Alakhib Ibrahim, and Abdelrahim Elobied Ahmed. “Design of a Simple UV Double Beam Spectrophotometer Detector Based on a High Gain Trans Impedance Operational Amplifiers for RNA Measurement”. International Journal of Recent Contributions from Engineering, Science & IT (iJES), vol. 4, no. 2, July 2016, pp. pp. 24-28, doi:10.3991/ijes.v4i2.5905.