Plasma organic content

Aliquots of the stock solution diluted to 10 pM are added to 1 mL of pH-adjusted plasma, protein fraction or buffer. The amount of organic content should not exceed more than 2 % of the initial spiked plasma. Higher content could adversely interfere with protein binding. 

These body fluids can be often introduced directly into the flame/graphite furnace or the inductively coupled plasma. Usually a dilution (five fold) with deionised water suffices for measurement of these specimens by most analytical techniques, because of their much lower organic content. 

Speed and Quality of Welding. The primed plates are cut and welded by a number of techniques (plasma, submerged arc, inert gas, manual metal arc, laser). The primers must not interfere with the speed and quality of welding. The principal defects of the previous generation of materials was their high organic content, which yielded porous welds. 

Caris-Veyrat C, Amiot MJ, Tyssandier V, Grasselly D, Buret M, Mikolajczak M, Guilland JC, Bouteloup-Demange C and Borel P (2004) Influence of organic versus conventional agricultural practice on the antioxidant microconstituent content of tomatoes and derived purees Consequences on antioxidant plasma status in humans . Journal of Agricultural and Food Chemistry, 52, 6503-6509. 

It is important that there is equilibrium in the distribution of vitamin E between the plasma and erythrocytes in a living organism, with the content of vitamin in plasma about threefold higher [12]. The membrane structure is a critical factor for recognition of how much vitamin E the membrane may absorb. It means that notwithstanding how much vitamin was consumed, its content in the membrane is inherently limited. 

Most tissues have well-defined patterns of esterase activity. Thus, the ESI synthesized in mouse liver constitutes the major esterase activity in murine plasma. It has been postulated that the ES2 present in the lymph plays an essential role in fat resorption [92], Four esterases designated ES5, SEI, SEII, and SEIII are restricted to serum and have not been identified in other tissues. The content of ES6 is highest in organs with active fat metabolism, but is absent in serum and erythrocytes. ES7 is present in erythrocytes, lung, tongue, testis, and most other tissues but not in plasma and brain. 

Fluoride taken in the form of sodium fluoride as a tablet or solution is absorbed rapidly. Only a few minutes after intake, there is a rise in plasma fluoride. The fluctuation in plasma fluoride concentration is dependent on the fluoride dose ingested, the dose frequency and the plasma half-life of fluoride. The half time for absorption is --30 min, so peak plasma concentration usually occurs within 30-60 min [64-69]. Absorbed fluoride is rapidly distributed by the circulation to the intracellular and extracellular fluids and is retained only in calcified tissues. The sensitivity of the serum fluoride concentrations to previous intake, glomerular filtration and the intensity of bone resorption suggests that the human organism exerts no direct homeostatic control and that fluoride concentrations reflect the recent intake [73]. Plasma fluoride levels increase with age, with increasing fluoride content of bone and as a consequence of renal insufficiency [2]. 

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