Reflectance Analysis

Mark, H., "Normalized distances for Qualitative Near-Infrared Reflectance Analysis", Anal. Chem. 1986 (58) 379-384. 

To encourage self-directed reflection, analysis and problemsolving. 

A. de Juan, G. Fonrodona and E. Casassas, Solvent classification based on solvatochromic parameters a comparison with the Snyder approach. Trends Anal. Chem., 16(1) (1997) 52-62. T. Naes, The design of calibration in near infra-red reflectance analysis by clustering. J. Chemom., 1 (1987) 129-134. 

M.A. Dempster, B.F. MacDonald, P.J. Gemperline and N.R. Boyer, A near-infrared reflectance analysis method for the non invasive identification of film-coated and non-film-coated, blister-packed tablets. Anal. Chim. Acta, 310 (1995) 43-51. 

R. Gimet and A.T. Luong, Quantitative determination of polymorphic forms in a formulation matrix using the near infrared reflectance analysis technique, J. Pharm. Biomed. Anal., 5, 205-211 (1987). 

Parnell, A. and White, J. (1983) The use of near infra-red reflectance analysis in predicting the digestibility and the protein and water soluble carbohydrate contents of perennial ryegrass. Journal of the National Institute of Agricultural Botany 16, 221-227. 

Near Infrared Reflectance Analysis (NIRA) is in use at over 5000 sites for the analysis of multiple constituents in food and other products. The technology is based upon correlation transform spectroscopy, which combines NIR spectrophotometry and computerized analysis of a "learning set" of samples to obtain calibrations without the need for detailed spectroscopic knowledge of factors being analyzed. The computer can obtain spectral characteristics of the analyte (based upon a correlation with data from an accepted reference analysis) without separation of the sample s constituents. 

Siesler HW, Ozaki Y, Kawata S, Heise HM. Near-Infrared Spectroscopy Principles, Instruments and Applications. Weinheim, Germany Wiley, 2002. Wetzel DL. Near Infrared reflectance analysis Sleeper among the spectroscopic techniques. Anal Chem 1983 55(12) 1165A-1175A. 

McDonald BF, Pebble KA. Some application of near-infrared reflectance analysis in the pharmaceutical industry. J Pharma Biomed Anal 1993 11(11-12) 1077-1085. 

Wetzel DL. Near infrared reflectance analysis sleeper among the spectroscopic techniques. Anal Chem 1983 55(12) 1165A-1175A. 

Quantitative FT-IR diffuse reflectance analysis of vinyl silanes on an aluminum hydroxide substrate... 

Chemical Sensing Using Near-IR Reflectance Analysis... 

Near-infrared reflectance analysis is particularly well suited to chemical sensing because it operates on "as is" samples and yet has chemical specificity. The absorptions observed originate from vibrations of a relatively few chemical groups whose overtones and combination bands appear in the near infrared region. 

Comparison of Near-Infrared Reflectance Analysis with Classical Spectroscopic Techniques... 

Characteristics specific to near-infrared (diffuse) reflectance analysis vs classical spectrometry ... 

---