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In this paper, we present a quasi-analytical method to calculate the optimal enzyme concentrations in a chemical process, considering the minimization of the operation time. The resulting constrained ...
The scale of the thermodynamic acidity of HCl solutions in DMF has been measured at 25 and 39.5 °C up to 15 mol L−1 acid concentration by the indicator method . It is shown that in the HCl-DMF system ...
-5170 Jülich Germany Henkel France F-51058 Reims France Ecole Supérieure de Chimie Industrielle de Lyon (ESCIL) F-69100 Villeurbanne France Summary A method for the analysis of δ 15 N -data of nitrate ...
,' and Michael A. Mignanelli' I5O, are produced by the photonuclear reaction of the air Abstract-Time-dependent chemical compositions for 13N and nuclei. Although short-lived (" N T = 9.97 min, "0 "3 150 induced ...
Abstract Serum diphenylhydantoin (Dilantin) concentrations are determined using the homogeneous enzymatic immunoassay method (EMIT) and a chemical method (Wallace). Statistical least squares analysis ...
. Nanofibers were synthesized using PVA (Polyvinyl alcohol) solutions at concentrations of 8%, 10%, and 12%. The electrospinning method is used in this investigation, with input voltages of 17 kV and 20 kV ...
oocysts. One gram of sample contained ±28 oocysts. We filtered eight water samples with different concentrations of oocysts (0.1–2 g of infected stool per 15 L of water) using zeolite ...
A sensitive method was developed to simultaneously determine 15 biomarkers of endocrine disrupting chemicals (EDCs) in human saliva using dispersive liquid–liquid microextraction (DLLME) and gas ...
need to take into account when choosing the preferred sample preparation method for their samples. The criteria concern: the sample matrix, the 15 N abundance and the concentration of the target N ...
& METHODS Sample preparation To test the accuracy of the new method , a series of 15 âartificialâ red peppers of known heat principle concentration were prepared by blending varying levels (O-12.5 ...
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