scholarly journals Optical Fiber Near Infrared Spectroscopy for Skin Moisture Measurement

10.5772/26420 ◽  
2012 ◽  
Author(s):  
Ahmad Fairuz ◽  
Mohd Zubir
Keyword(s):  
Infrared Spectroscopy ◽  
Optical Fiber ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Moisture Measurement ◽  
Skin Moisture

Detection of Methanol in Gasolines Using Near-Infrared Spectroscopy and an Optical Fiber

1987 ◽  
Vol 41 (8) ◽  
pp. 1388-1392 ◽  
Author(s):  
B. R. Buchanan ◽  
D. E. Honigs
Keyword(s):  
Infrared Spectroscopy ◽  
Linear Regression ◽  
Optical Fiber ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Low Cost ◽  
Weight Percent ◽  
Infrared Analysis ◽  
Stepwise Multiple Linear Regression ◽  
Hazardous Environments

Because of methanol's relatively low cost and its utility as an octane booster, a need to monitor the concentration of methanol in gasolines has evolved. Near-infrared analysis can be used to monitor methanol in gasolines with the use of optical fiber. If stepwise multiple linear regression is used, methanol can be predicted to within 0.25 weight percent. The use of an optical fiber lowers personnel and instrument exposure to hazardous environments and minimizes the risk of explosion. It is pointed out, however, that care must be taken in the prediction of future specimens. The differences between enumerative and analytical calibrations are also discussed.

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