Table 1
Exemplary Raman imaging parameters used for measurements of intact carrot root slices, carotenoid crystals present in carrot cells and isolated
carotenoid crystals
Sample
Type of
spectrometer
a
Laser
wavelength
(nm)
Laser
power
(mW)
Integration time
(s) per spectrum
No. of
accumulations
(scans)
Spectral
resolution
(cm
À1
)
Size of the image
(μm)
Sampling
density
(μm)
Reference
Root
I
1064
150
–
8
4
10,500
 12,000 250
[15]
Cells
D
532/488
40/30
0.3
1
3/1
10
 10
0.2
[11]
Isolated
crystal
D
533/488
20/0.01 0.1/0.3
1
3/1
20
 20
0.2/0.5
[12]
a
I interferometric (FT),
D dispersive spectrometer
258
Tomasz Oleszkiewicz et al.
Exemplary Raman imaging parameters used for measurements of intact carrot root slices, carotenoid crystals present in carrot cells and isolated
carotenoid crystals
Sample
Type of
spectrometer
a
Laser
wavelength
(nm)
Laser
power
(mW)
Integration time
(s) per spectrum
No. of
accumulations
(scans)
Spectral
resolution
(cm
À1
)
Size of the image
(μm)
Sampling
density
(μm)
Reference
Root
I
1064
150
–
8
4
10,500
 12,000 250
[15]
Cells
D
532/488
40/30
0.3
1
3/1
10
 10
0.2
[11]
Isolated
crystal
D
533/488
20/0.01 0.1/0.3
1
3/1
20
 20
0.2/0.5
[12]
a
I interferometric (FT),
D dispersive spectrometer
258
Tomasz Oleszkiewicz et al.