Urea concentration of the sample solution whichPROBLEM TO BE SOLVED: To provide a chemiluminescence measuring method to generate turbulent flow inside a cylinder by jet flow of a solution other than a sample solution and uniform the sample solution and a reaction agent solution as a piston moves,...
The error bars in panels d and f indicate the standard deviation of the values measured for each sample at different incubation times. The Aβ42 concentration refers to the experimentally determined real concentrations in solution. Full size image All correlation curves are well fitted with two ...
2.1 Chemistry of boron in water Boron species are found predominantly in aqueous solutions, depending on the boron concentration, pH, and temperature of the solution (e.g., boric acid, which is a very weak Lewis acid (Eq. (1)) and its conjugate base (B(OH)−4) at a low boron conc...
A sample of the solution is added to a first ion exchange resin bed charged with a cation exchange resin and the samp... TS Stevens - US 被引量: 152发表: 1975年 Quantitative analysis, medical diagnosis This invention relates to a method and apparatus for the rapid quantitative determination...
aChemical analyses can be made by determining how much of a solution of known concentration is needed to react fully with an unknown test sample. 化学分析可以通过确定多少做已知的集中的解答是需要的充分地起反应与一个未知的测试样品。[translate]...
The activity concentration of a 238Pu solution was measured by the determined solid angle method employing a novel dual diaphragm-detector assembly, which ... JC Aguiar,E Galiano,P Arenillas - 《Applied Radiation & Isotopes Including Data Instrumentation & Methods for Use in Agriculture Industry ...
g Raman spectra and h conversion rate of A2ms with variable isothermal curing time. The inset in Fig. 2h shows the conversion rate of reference sample monomer solution before and after isothermal curing treatments. i Molecular weight and polydispersity index of the spontaneously polymerized A2 and ...
A gradient solution of ofloxacin (loxacin dissolved in hydrochloric acid) ranging from 100 to 1 ppm was prepared and spotted on a diatomaceous earth plate 1.5 cm from the bottom of the thin layer chromatography plate. The sample was separated by placing the plate vertically in the mobile phase...
Computational Simulation of Chemical Osmosis Induced Flow and Solute Concentration Variation Problems in Solution-Saturated Semi-permeable Porous Materials The fundamental characteristic of a semi-permeable porous material is that the solvent is allowed to pass through it but the solute is not. Due to ...
Soil pollution is a big issue caused by anthropogenic activities. The spatial distribution of potentially toxic elements (PTEs) varies in most urban and peri-urban areas. As a result, spatially predicting the PTEs content in such soil is difficult. A tot