the study aimed to investigate the adsorption mechanism of di-n-butyl phthalate (dbp) onbrown soil and red soil in shenyang and hunan province, respectively, china. adsorption kinetics andisotherms experiments were conducted at 288, 298 and 308 k, respectively. results of kinetics showed thatadsorption of dbp exhibited a two-step process in both brown and red soil. different models were used to...

water content plays an important role in the process of plant photosynthesis and biomass accumulation. many methods have been developed to retrieve canopy leaf water content from remote sensing data. however, the validity of these methods has not been verified, which limits their applications. this study estimates the leaf water content (lwc) of winter wheat with three most widely used indexes:...

Experimental and computational methods of infrared microspectroscopy (IRI-MSP) and infrared spectral mapping (ISM) are presented. These methods are subsequently applied to the analysis of cirrhotic liver tissue. The sensitivity of infrared spectral mapping toward spectral changes caused by disease will be demonstrated. In addition, the excellent agreement between ISM data and histopathological ...

The aim of this study was to investigate the potential of the infrared spectroscopy technique for nondestructive measurement of fat content in milk powder. Fat is an important component of milk powder. It is very important to be able to detect the fat content in milk powder using a rapid and nondestructive method. Near and mid infrared spectroscopy techniques were used to achieve this purpose. ...

Combining the molecular specificity of the infrared spectral region with high resolution microscopy has been pursued by researchers for decades. Here we demonstrate infrared supercontinuum radiated from an optical fiber as a promising new light source for infrared microspectroscopy. The supercontinuum light source has a high brightness and spans the infrared region from 1400 nm to 4000 nm. This...

A new setup for direct microspectroscopic monitoring of singlet oxygen ((1)O2) has been developed in our laboratory using a novel near-infrared sensitive InGaAs 2D-array detector. An imaging spectrograph has been inserted in front of the 2D-array detector, which allows us to acquire spectral images where one dimension is spatial and the other is spectral. The work presents a detailed examinatio...

The radiative balance of the troposphere, and hence global climate, is dominated by the infrared absorption and emission of water vapor, particularly at far-infrared (far-IR) wavelengths from 15-50 μm. Current and planned satellites observe the infrared region to about 15.4 μm, leaving spectral measurement of the far-IR region unsupported. The far-infrared spectroscopy of the troposphere (FIRST...

Infrared spectra of some deuterio analogues of carboxylic acids in heavy water have been investigated and their spectral behavior in carbonyl stretching frequency region have been interpreted in terms of their structural behavior in aqueous solutions. It has been shown that a linear relationship exists between carbonyl stretching frequency of solvated acids at infinite dilution and their...

The Infrared Spatial Interferometer at University of California, Berkeley has been outÐtted with a Ðlter-bank system to allow interferometric observations of mid-infrared spectral lines with very high spectral resolution (j/*jD 105). This paper describes the design, implementation, and performance of the matched 32 channel Ðlter-bank modules, and new spectral-line observations of Mars and IRC ]...

infrared spectra of some deuterio analogues of carboxylic acids in heavy water have been investigated and their spectral behavior in carbonyl stretching frequency region have been interpreted in terms of their structural behavior in aqueous solutions. it has been shown that a linear relationship exists between carbonyl stretching frequency of solvated acids at infinite dilution and their pk s .