Diffuse reflectance infrared Fourier transform spectrometry

Schoning AG, Johansson G (1965) Absorptiometric determination of acid-soluble lignin in semichemical bisulfite pulps and in some woods and plants Sven Papperstidn 68 607-613 Schultz TP, Templeteon MC, McGinnis GD (1985) Rapid determination of lignocellulose by diffuse reflectance Fourier transform infrared spectrometry Anal Chem 57 2867- 2869 Sjostrom E, Enstrom B (1966) Spectrophotometnc determination of the residual lignin in pulp after dissolution in cadoxene Sven Papperstidn 69 469-476... [Pg.60]

Berben SA, Rademacher JP, Sell LO, Easty DB (1987) Estimation of lignin in wood pulp by diffuse reflectance Fourier-transform infrared spectrometry Tappi J 70(11) 129-133 Birkett M, Gambino M, Meyer JH, Egers D (1989) Estimation of kappa number of pulps by near-infrared spectroscopy Tappi J 72(9) 193-197 Bracewell R (1965) The Fourier transformation and its applications McGraw-Hill, New York, 381 pp... [Pg.106]

Gurka DF, Billets S, Brasch JW, Riggle CJ (1985), Anal. Chem. 57 1975-1979. Tetrachlorodi-benzodioxinisomer differentiation by micro-diffuse reflectance Fourier transform infrared spectrometry at the low nanogram level"... [Pg.76]

TP Schultz, MC Templeton, and GD McGinnis. Rapid Determination of Lignocellulose by Diffuse Reflectance Fourier Transform Infrared Spectrometry. Anal. Chem. 57 2867-2869, 1985. [Pg.133]

Tajima, T., Wada, K., and Ichimura, K. (1992). Zone transfer technique for diffuse reflectance Fourier transform infrared spectrometry of analytes separated by thin layer chromatography. Vib. Spectrosc. 3 211-216. [Pg.195]

Zuber, G. E., Warren, R. J., Begash, P. P., and O Donnell, E. L. (1984). Direct analysis of TLC spots by diffuse reflectance Fourier transform infrared spectrometry. Anal. Chem. 56 2935-2939. [Pg.196]

Schultz TP, Glasser WG (1986) Quantitative structural analysis of lignin by diffuse reflectance Fourier transform infrared spectromety Holzforschung 40 (Suppl) 37-44 Schultz TP, Nicholas DD (1987) Fourier transform infrared spectrometry Detection of incipient brown rot decay in wood Int Analyst 41 35-39 Sjostrom M, Wold, S, Lindberg W, Persson J-A, Martens H (1983) A multivariate calibration problem in analytical chemistry solved by partial least-squares models in latent variables Anal Chim Acta 150 61-70... [Pg.109]

Characterization Tools for Pyrolysis Oils. It wasn t too many years ago that the only tools available to the scientist interested in pyrolysis oil composition were gas chromatography and thermogravi-metric analysis. The complexity of the pyrolysis oils demands high performance equipment, and a list of such equipment mentioned during the symposium would include proton and carbon nuclear magnetic resonance spectroscopy, free-jet molecular beam/mass spectrometry (16.25), diffuse reflectEuice Fourier transform infrared spectrometry ( ), photoelectron spectroscopy ( ), as well as procedures such as computerized multivariate analysis methods (32) - truly a display of the some of the most sophisticated analytical tools known to man, and a reflection of the difficulty of the oil composition problem. [Pg.3]

SAMs of allgrlphosphonic acids (butylphosphonic acid, octylphosphonic acid, undecylphosphonic acid and octadecylphosphonic acid) on native niekel oxide allow substrates to be functionalized easily. Monolayer formation has been investigated by diffuse reflectance Fourier transform infrared spectroscopy, non-contact mode atomic force microscopy, contact angle measurements and matrix-assisted laser desorption ionization mass spectrometry. Cyclic voltammetry and electrochemical impedance spectroscopy studies showed that the monolayer increased surface resistance to oxidation. [Pg.291]

Kolboe and Ellefsen (1962) and Michell et al. (1965) provided preliminary results indicating the feasibility of employing infrared spectroscopy to determine the lignin content of finely ground wood and pulp samples embedded in potassium chloride. Further development and refinement of this technique have led to methods for determination of lignin based on multiple internal reflectance infrared spectrometry (Marton and Sparks 1967) and diffuse reflectance Fourier transform spectrometry (Schultz et al. 1985). Lignin contents have also estimated by 13C CP/MAS/NMR spectrometry (Haw et al. 1984, Hemmingson and Newman 1985) (see Chap. 4.5). [Pg.43]

Ferraro JR, Basile LJ (1978) Fourier transform infrared application to national problems In Ferraro JR, Basile U (eds) Fourier transform infrared spectroscopy - applications to chemical systems, Vol 4 Academic Press, New York, 275-302 Ferraro JR, Rein AJ (1985) Application of diffuse reflectance spectroscopy in the far-infrared region In Ferraro JR, Basile LJ (eds) Fourier transform infrared spectroscopy -applications to chemical systems, Vol 4 Academic Press, New York, 244-282 Frank IE, Feikema J, Constantine N, Kowalski BR (1984) Prediction of product quality from spectral data using the partial least squares method J Chem Inf Comput Sci 24 20-24 Fuller MP, Griffiths PR (1980) Infrared microsampling by diffuse reflectance Fourier transform spectrometry Appl Spectrosc 34 533-539... [Pg.106]

The samples were characterized by X-ray diffraction (XRD) transmission and high-resolution electron microscopy (TEM and HREM) microelectrophoresis X-ray photoelectron spectroscopy (XPS), also known as electron spectroscopy for chemical analysis (ESCA) secondary ion mass spectrometry (SIMS) and diffuse reflectance Fourier transform (DRIFT) infrared absorption spectroscopy. [Pg.544]

Because of its highly discriminative capability, Fourier transform infrared (FTIR) spectrometry is valuable for identification of unknown compounds by comparison of sample spectra to reference spectra or by spectral interpretation (Somsen et al., 1995). IR spectra have been obtained on eluted samples or directly on TLC plates. About 5 pg is usually required for the elution method, which involves scraping of the zone and elution from the layer material onto an IR-transparent substance such as KBr (Issaq, 1983). Spectra can be measured directly on TLC plates by diffuse reflectance Fourier transform (DRIFT) IR spectrometry (Zuber et al, 1984). For in situ DRIFT-IR spectrometry, which requires 1-10 pg of compound, solvents must be removed from the layer and spectra corrected... [Pg.182]

Fuller MP, Griffiths PR. 1978. Diffuse reflectance measurements by infrared fourier transform spectrometry. Anal. Chem. 50 1906-1910. [Pg.307]

Capillary Electrophoresis Chemical Warfare Agents Chemical Weapons Convention Deuterated L-Alanine Triglycine Sulfate Dimethyl Ethylphosphonate Dimethyl Isopropylphosphonate Dimethyl Methylphosphonate Dimethyl Propylphosphonate Dimercaptotoluene Diffuse Reflectance Infrared Fourier Transform Functional Group Chromatograms Flame-Ionization Detector Fourier Transform Infrared Spectroscopy Gas Chromatography Gas Chromatography/Chemical Ionization/Mass Spectrometry Gas Chromatography/Chemical Ionization/Tandem Mass Spectrometry... [Pg.381]

Pakdel H, Grandmaison JL, Roy C (1989) Analysis of wood vacuum pyrolysis solid residues by diffuse reflectance infrared Fourier transform spectrometry Can J Chem 67 310-314 Perkins WD (1986) Fourier transform-infrared spectroscopy Part I Instrumentation J Chem Educ 63 A5-A10... [Pg.108]

Surface characterization by spectroscopic techniques yields information on the functional groups and elemental composition on the surface of polymeric biomaterials. The most common spectroscopic tools used for biomedical polymers are X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), secondary ion mass spectrometry (SIMS), and Fourier transform infrared spectroscopy (FTIR) (diffuse reflectance and attenuated total internal reflectance modes). Each of these techniques is discussed in the succeeding text. [Pg.40]

TeVrucht, M.L.E. Griffiths, P.R. Quantitative investigation of matrices for diffuse reflectance infrared fourier transform spectrometry. Talanta 1991, 38, 839-849. [Pg.3385]

The results presented in this paper show that diffuse reflectance infrared Fourier transform spectroscopy, used in conjunction with controlled environment techniques and gas chromatography/mass spectrometry, can be a powerful tool for the study of catalysis by product (shape) selective molecular sieve materials. By utilizing spectral differencing techniques it is possible to track the variations in protonated site occupancy and the formation of stable organic species that occur during exposure of molecular sieve catalysts to organic reactants. [Pg.96]

Tunstall,S.,Amarasiriwardena,D.(2002) Characterization of lead and lead leaching properties of lead glazed ceramics from the Solis Valley, Mexico, using inductively coupled plasma-mass spectrometry (ICP-MS) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFT). Microchemical Journal, 73, 335-347. [Pg.881]

Diffuse Reflectance-. Diffuse reflectance, or diffuse reflectance infrared Fourier transform spectrometry (DRIFTS), exploits surface interactions and reflection. Although samples still are mixed with KBr, there is no need to press the mixture into a clear pellet. The technique is also more sensitive than traditional dispersive IR and requires less material than a pellet. The sample is mixed with KBr to create a dilute solid solution of reasonably uniform small crystal size. The mixture is placed in a small cup, and the IR beam is directed onto the surface, where... [Pg.165]

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