Results 131 to 140 of about 1,105,025 (337)
Química Nova, 2008 The objective of this study was to develop and validate an analytical method for quantification of glucosamine and chondroitin in pharmaceutical formulations. Multivariate calibration combined with infrared spectrophotometry allowed this analysis.
Paula Rossignoli +4 more
doaj +1 more source
BACTERIAL IDENTIFICATION BY INFRARED SPECTROPHOTOMETRY [PDF]
Journal of Bacteriology, 1956 Jackson W. Riddle +5 more
openaire +3 more sources
Journal of Plant Nutrition and Soil Science, EarlyView.Abstract Wet‐chemical extraction of soil to quantify pedogenic species or to remove specific compounds prior to other analyses is an established approach in analytical soil mineralogy and soil chemistry. Interpretation and informational value of data derived from long‐established and frequently used extractions, for instance involving dithionite ...
Thilo Rennert, Katharina R. Lenhardt
wiley +1 more source
Macromolecular Bioscience, EarlyView.Mucoadhesive chitosan‐poly(2‐hydroxyethyl ethyleneimine) (P2HEEI) films were developed for buccal delivery of haloperidol. P2HEEI is synthesized by reacting linear polyethyleneimine with 2‐bromoethanol, achieving high solubility, low glass transition temperature, and biocompatibility.
Sitthiphong Soradech +2 more
wiley +1 more source
New Clues on the Nature of Extremely Red Galaxies [PDF]
arXiv, 1999 We present near-infrared VLT-UT1+ISAAC spectroscopy of a sample of 9 extremely red galaxies (ERGs) with R-K>5 and K<19.0. Neither strong emission lines (F_lim<1-5 10^{-16} erg s^{-1}cm^{-2}) nor continuum breaks are detected. From near-infrared spectrophotometry, complemented with broad-band optical and near-IR photometry, we estimate ``spectro ...
arxiv
Infrared astronomy research and high altitude observations [PDF]
Highlights are presented of studies of the emission mechanisms in the 4 to 8 micron region of the spectrum using a circular variable filter wheel spectrometer with a PbSnTe photovoltaic detector. Investigations covered include the spectroscopy of planets,
Jones, B. +3 more
core +1 more source
Macromolecular Materials and Engineering, EarlyView.This study develops decellularized caprine liver scaffolds, preserving ECM components like collagen and GAGs. The scaffolds are combined with Chitosan‐PVA hydrogels, optimized via FT crosslinking, thus exhibiting shear‐thinning behavior, enhanced mechanical properties, and biocompatibility, supporting HepG2 cell adhesion, proliferation, and hepatic ...
Supriya Bhatt +3 more
wiley +1 more source
Dataset on Catal's reagent: Sensitive detection of iron (II) sulfate using spectrophotometry
Data in Brief, 2020 Catal's reagent is characterized by spectroscopic methods such as fourier-transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry (MS), ultraviolet (UV)–visible spectrophotometry.
Funda Ozkok +5 more
doaj
Antistatic sprays from several different manufacturers are examined. The sprays are examined for contamination potential (i.e., outgassing and nonvolatile residue), corrosiveness on an aluminum mirror surface, and electrostatic effectiveness. In addition,
Ming, James E.
core +1 more source
Two-micron spectrophotometry of the galaxy NGC 253 [PDF]
, 1979 A very strong Brackett-gamma hydrogen emission line, and the 2.3 micron CO stellar absorption feature were measured in NGC 253. The presence and strength of the CO feature indicates that late type giant stars produce most of the 2.2 micron continuum ...
Becklin, E. E. +3 more
core +1 more source