Conditions for Gas chromatography (GC) equipped with Flame Ionization Detector (FID) were optimized in order to dtermine volatile N-nitrosamine in meat and meat products, using optima XLB (30m × 0.25 mm × 0.25µm) column. Results reveal that the metho
d has a low detection limit with repeatability and linearity and with average recovery ranging from 89% to 105.5% and accepted relative standard deviation
The research aims to identify incoming fatty acids in the composition of both the
Syrian domestic oil extracted from the seeds of Nigella sativa, fenugreek, borage and
Rocket , using gas chromatography GC, as the goal to identify some of the most i
mportant
physical properties ( density and refractive index ) and chemical ( Iodine number and
saponification number ) utmost to improve and develop the Syrian varieties of the studied
oils.
Search Results showed that borage oil contain the highest proportion of the Poly
unsaturated fatty acids ( 81.5% ) PUFA and the highest percentage of gamma -linolenic
acid ( 14.4% ) GLA, and it was for each of Nigella sativa oil and oil fenugreek close by
percent's of ( 60.89%-60.95% ) PUFA, and overall mono unsaturated fatty acids ( 33.89%-
28.19% ) MUFA and linoleic acid ( 60.71%-58.92% ) LA has the enjoyment of the highest
value oil ring of oleic fatty acid ( 26.72% ), while oil Rocket had the highest values ( 79%)
MUFA so different from the rest of the studied oils. The results of this research clearly
compatible with the results of global studies at the same oils.
تعيين الأثر المتبقي من الايتانول في الأشكال الصيدلانية الصلبة المصنعة بالتحثير الكحولي باستخدام الكروماتوغرافيا الغازية ذات الحيز الفوقي ومكشاف تأيين اللهب
