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2500

1.0

0.4 0.3

2366

1790

0.5

1734

1442

0.6

1176

log(1/R)

0.7

2244

0.8

2104

1928

0.9

0.2 0.1 0.0 1100

1300

1500

1700

1900

2100

2300

2500

Wavelength (nm)

NIR Spectrum Of Pectin Powder From Citrus Fruits (Galacturonic Acid 76% And Methoxy Content 8.6% Without Sucrose Or Other Sugars) (Sigma Chemical Co., USA) Measured By Bran Und L端bbe Infralyser 500


2.5

1950

Log 1/R

2

2073

1688

1450

1.5

2100

2255

Sucros

1586

Frutose

1 2103

0.5

1589

1470

0 1100

1300

1500

water

2280

Glucose

1700 1900 Wavelengh (nm)

2100

2300

2500

sucrose glucose fructose water NIR Spectra Of Sucrose, D-Glucose, D-Fructose (Univar, Ajax Finechem, Australia) and Water Measured By Bran Und L端bbe Infralyser 500,

Germany


NIR Spectrum Of Pure histamine (Histamine dihydrochloride 99%) (Acros, Belgium) Measured By FT-NIR spectrometer (MPA, Bruker, Germany)


2476

2218 2278

2032

1884

1715 1780 1390 1420

1202

1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500

Absorbance log (1/R)

1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8

Wavelength (nm) NIR Spectrum Of pure Para rubber (cis-1,4-polyisoprene) Measured from Dried Rubber Sheets By FT-NIR spectrometer (NIRFlex Solids, B端chi, Switzerland)


NIR Spectrum Of Acetic Acid (99.8%), Formic Acid (99%) and Propionic Acid (Carlo Erba, Italy) Measured By FT-NIR spectrometer (MPA, Bruker, Germany) .


NIR spectra of Pure substance