Abdelbary, A.I. and Ahmed, A.E. 2016. 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). 4, 2 (Jul. 2016), pp. 24–28. DOI:https://doi.org/10.3991/ijes.v4i2.5905.