Near-Infrared Method for Determination of Water in Aluminum Aspirin.

1963 ◽  
Vol 35 (4) ◽  
pp. 550-552 ◽  
Author(s):  
H. H. Stein ◽  
J. M. Ambrose
Keyword(s):  
Near Infrared ◽  
Infrared Method

Determination of Moisture by Mid Infrared Transmission Spectroscopy

1988 ◽  
Vol 71 (5) ◽  
pp. 1024-1027 ◽  
Author(s):  
Frederick R Van De Voort ◽  
Marilou Laureano ◽  
James P Smith
Keyword(s):  
Near Infrared ◽  
Milk Powder ◽  
Skim Milk ◽  
Skim Milk Powder ◽  
Infrared Transmission ◽  
Mid Infrared ◽  
Standard Curve ◽  
Moisture Extraction ◽  
Infrared Method

Abstract An investigation was undertaken to determine whether commercially available mid infrared filter instrumentation (i.e., Multispec MK1) could be used to determine moisture in a manner similar to the AOAC near infrared method. Using a specially designed IR scanning spectrophotometer capable of working with aqueous systems, functional sample (6.02 jtm) and reference (5.56 iim) wavelengths were determined for quantitating water-methanol mixtures, and a standard curve was derived. Skim milk powder, bread crumbs, and flour were mixed with dry methanol to extract moisture into the solvent; moisture was quantitated relative to 3 AOAC methods. The results indicated that the wavelength pair selected worked well and had the potential to determine moisture content of low moisture food products, given that appropriate moisture extraction protocols were derived. This work indicates that the capabilities of commercial filter-based mid infrared instruments could be expanded to include moisture analyses if such instruments were equipped with the appropriate interference filters to carry out this determination.

Moisture in Dried Vegetables and Spices

1966 ◽  
Vol 49 (4) ◽  
pp. 726-730 ◽  
Author(s):  
Bobby R Eader
Keyword(s):  
Near Infrared ◽  
Collaborative Study ◽  
Oven Method ◽  
Vacuum Oven ◽  
Karl Fischer ◽  
Karl Fischer Method ◽  
Infrared Method ◽  
Dried Vegetables ◽  
Fischer Method

Abstract A collaborative study was conducted to compare the near-infrared spectrophotometric method and a Karl Fischer volumetric method with a vacuum oven method for the determination of moisture. Results by the near-infrared method were as accurate as and more rapid and specific than the vacuum oven method. Results by the Karl Fischer method were not as satisfactory; more study is needed to improve the precision of the method.

Determination of ethanol in gasoline mixtures by a near-infrared method

The Analyst ◽  
1982 ◽  
Vol 107 (1279) ◽  
pp. 1282 ◽  
Author(s):  
Jane L. Wong ◽  
Bruno Jaselskis
Keyword(s):  
Near Infrared ◽  
Infrared Method

Temperature-Insensitive Near-Infrared Method for Determination of Protein Concentration during Protein Crystal Growth

2000 ◽  
Vol 72 (20) ◽  
pp. 4985-4990 ◽  
Author(s):  
J. T. Olesberg ◽  
M. A. Arnold ◽  
Shih-Yao B. Hu ◽  
John M. Wiencek
Keyword(s):  
Crystal Growth ◽  
Protein Concentration ◽  
Near Infrared ◽  
Protein Crystal ◽  
Protein Crystal Growth ◽  
Infrared Method
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