19 Bio-applications of NIR Spectroscopy
427
Table 19.2
PLSR results for the five-component mixture in dialysate derived from MIR and NIR spectra
Model
Factor R 2
RMSECV in
mg/dL
RMSEP in mg/dL LOD
min in mg/dL LOD
max in
mg/dL
LOQ
min in mg/dL LOQ
max in
mg/dL
Urea
CV
NIR
4
0.97 12
–
10
24
29
72
MIR
4
0.99 7.9
–
10
18
31
55
TV
NIR
4
0.98 –
19
–
–
–
–
MIR 5
0.99 –
6.6
–
–
–
–
Glucose
CV
NIR
4
0.89 37
–
36
73
108
218
MIR
3
0.96 22
–
47
142
140
428
TV
NIR
4
0.86 –
54
–
–
–
–
MIR 2
0.99 –
11
–
–
–
–
Lactate
CV
NIR
–
–
–
–
–
–
–
–
MIR
5
0.95 8.2
–
28
90
84
271
TV
NIR
–
–
–
–
–
–
–
–
MIR 8
0.99 3.0
–
–
–
–
–
Phosphate
CV
NIR
–
–
–
–
–
–
–
–
MIR
8
0.99 1.1
–
1.0
2.6
3.0
7.9
TV
NIR
–
–
–
–
–
–
–
–
MIR 8
0.95 –
2.0
–
–
–
–
Creatinine CV
NIR
–
–
–
–
–
–
–
–
MIR
5
0.98 1.8
–
2.6
4.5
7.9
13
TV
NIR
–
–
–
–
–
–
–
–
MIR 4
0.96 –
2.1
–
–
–
–
– … value not available