Inventors: Prof. Dr. Essam Mohammed Ali Shakir, Prof. Dr. Nagham Shaker Turki al-Awadi, Ph.D. Student: Hussein Faris Abdul Razaq/Department of chemistry, College of science, University of Baghdad


This request include a study using system for fluorescence and induced fluorescence and reflected and refracted inside precipitate particulate resulted as a new reaction at different concentration. This request present three drugs which are Mefimanic acid, Indomethacin, and Ibuprofen. As these drugs form precipitate with certain chemical reagent. This was used by reflecting the light from the low pressure mercury lamp. As these photons will collid with precipitate particulate. This was used as the reflected light, thought the impact of photons with precipitate particulate (as λ will by changed and shift to a longer λ). Irradiation is done by band one at 184.9nm and 253.7nm. As pat will be irradiated. They 100mm distance at 2mm path length this way of irradiation a novel way of irradiation. The emission of fluorescence measured at + 90o and -90o (i.e.; 100mm on the right at 90o and vica versa. All reflected, refracted and different light it is all 2mm whatever it is source it is 2mm .The instrument capable to collect of reflected and refracted or even it enters the granuales (if it was gel or smooth granuales the light is capable to inter and diffuse through it) or it is a reflection on the solid granuales surface. The scatter of all light is protected by brass body design to allows only 2mm operture at +90o (right) and -90o (left). On this basis the fluorescence light at ±90o can be detected. Therefore the instrument has the capability to measure the fluorescence for clear solution, colloidal solution and solution containing solid precipitate (precipitated as a result of chemical reaction. All this long distance fluorescence emission and scatter light is measured by a solar cell (4 x 25mm on each side) its light response extend from 410-1150nm. Accumulated emission of 4 cell on each side, it gave the final peak response profile. The instrument proves to have great tending and gives results similar to most sophisticated instrument and this was done. All obtained precipitate was subject to AFM. Two samples were selected by the researcher to express all AFM parameters (amplitude parameters by hybrid parameter, functional parameters, and spatial parameters; in addition of topography). Advanced calculations and explanations were carried out for surface were calculated. We the researcher believe that no such detailed calculation conducted and relation to flow injection analysis technique, and how AFM parameters helps to explain the profiled S/N υs. concentration.

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