OPTIMIZATION OF NEUROTRANSMITTERS SEPARATION UNDER HILIC CONDITIONS
Journal Title: Journal of Engineering Studies and Research - Year 2017, Vol 23, Issue 1
Abstract
This paper presents the optimization of a hydrophilic interaction chromatographic method for the separation of eleven catecholamines, indolamines and their precursors and metabolites. The studied parameters are: the organic modifier nature and percentage, the salt nature and concentration, the mobile phase pH and the column temperature. The best results in terms of separation were obtained using a mobile phase composed of acetonitrile and ammonium formate (150 mM pH 3) 85:15 v:v.
MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETE
It has been a long time since humans started using waste materials in engineering applications. This approach not only reduces the yield of waste, while minimizing the costs of disposal but also limit the cost of new mat...
INTELLIGENT LOW-POWER SMART HOME ARCHITECTURE
The Smart Home technology is a house that implements a variety of physical and digital well-integrated technologies, providing a number of functionalities like control of lighting, temperature, multimedia devices, flamma...
SENSITIVITY ANALYSIS OF AVALANCHE PHOTODIODE AND PIN DIODE DETECTORS IN OPTICAL RECEIVERS
This research explained how to establish the optical receiver sensitivity and the link power budget design in terms of quality factor, receiver power and bit error rate (BER) for several values of attenuation at 100km fi...
EMISSIONS MONITORING OF HEAVY METALS AND THEIR COMPOUNDS RESULTED FROM COMBUSTION PROCESSES IN CLINKER KILNS IN ROMANIA
With the dust arising from the clinker kilns and grill coolers (the major pollution sources in a cement plant), also heavy metals and their compounds (in the form of powders and vaporous), originating from fuels and raw...
MODELING OF SOLAR RADIATION WITH A NEURAL NETWORK
Modeling of solar radiation with neural network could be used for real-time calculations of the radiation on tilted surfaces with different orientations. In the artificial neural network (ANN), latitude, day of the year,...