نتایج جستجو برای: randomly selected
تعداد نتایج: 476153 فیلتر نتایج به سال:
We report here on the results of a procedure for the determination of amphetamine drugs in hair. The procedure is simple and sensitive. The results from the procedure using small-volume extraction matches perfectly with those either from using the derivatization method or selected ion monitoring (SIM) detection. We validated our method using four different amine drugs, including amphetamine, me...
the study was carried out in the purposively selected senapati and thoubal districts of hill and valley regions of manipur state of india. two blocks from each of the above selected districts were selected randomly and further from each block four villages were also selected randomly. 30 dairy farmers from each village were selected randomly and thus collected data from 240 respondents through ...
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