The angle draw was [beta]=62.24[degrees] and extraction coefficient
where [f.sub.x] is the extraction coefficient of component x, and [C.sub.x(before)] and [C.sub.x(after)] are the relative concentrations of component x before and after, respectively, extraction by DVB/CAR/PDMS fiber.
In this respect, an SPME fiber coating with DVB/CAR/PDMS is suitable for the extraction of [C.sub.1]-[C.sub.9] hydrocarbons from natural gas, thereby allowing the extraction of 24 types of hydrocarbons, with an extraction coefficient increasing significantly upon increasing the carbon number.
The data on extraction coefficient and carbon isotopic composition that are used to support the findings of this study are available from the corresponding author upon request.
While the value of consideration factor (extraction coefficient and shoot/root quotient) which involved in translocation of lead from s into plants was less than 1, therefore it was not suitable to clean up lead contaminated soil.
Phytoaccumulation Rate, Percentage of the Lead Uptake, Shoot/Root Quotient and Extraction Coefficient:
Extraction coefficient is calculated as follows: extraction coefficient = lead concentration in plant shoot/lead concentration in soil.
plant at the Ararat facility, which would significantly increase the extraction coefficient
for sulphide-heavy ores from the Sotk mine.
Tadalafil Recovery After Extraction: Drug-Free Human Serum Was Spiked With Tadalafil at Different Concentrations and Extraction Coefficient
Calculated Concentration Average Extraction (ng/mL) Coefficient (%) (n=3 for each level) 10 76.5 20 79.2 50 85.5 100 82.7 200 85.3 300 77.9 400 83.3 600 84.6 800 81.1 Table 4.
Dissolved P = extraction coefficient * available soil P * overland flow volume (1)
where dissolved P is orthophosphate loss in overland flow (kg [ha.sup.-1]), available soil P is the amount of P in a unit depth of surface soil (usually 5 cm) (2 in) as estimated by recommended soil test P (STP) methods (kg [ha.sup.-1] 5 [cm.sup.-1]) (lb [ac.sup.-1] 2 [in.sup.-1]), and extraction coefficient is the fraction of STP that can be released to overland flow for a given flow event volume (cm).
Most models use a constant extraction coefficient value, assuming that STP extractability is similar among soils.