160
Linearity Test. Concentration Unit Conversion
16.1
Chemistry
g/L
mg/L
(ppm)
mg/dL
%
(w/v)
mmol/L
mw
(g/mole)
0.47
473
47
0.047
4.54
Choline
0.45
450
45
0.045
4.32
(104)
0.43
427
43
0.043
4.10
9.45
9,450
945
0.945
52.5
Glucose (Dextrose)
9.00
9,000
900
0.900
50.0
(180)
8.55
8,550
855
0.855
47.5
3.36
3,360
336
0.34
73.1
Ethanol
3.20
3,200
320
0.32
69.6
(46)
3.04
3,040
304
0.30
66.1
42.0
42,000
4,200
4.20
913.0
Ethanol-HC
40.0
40,000
4,000
4.00
869.6
(46)
38.0
38,000
3,800
3.80
826.1
1.54
1,535
154
0.154
9.5
L-Glutamate
1.46
1,462
146
0.146
10.0
(146)
1.39
1,389
139
0.139
10.5
1.23
1,228
123
0.123
8.40
L-Glutamine
1.17
1,169
117
0.117
8.00
(146)
1.11
1,111
111
0.111
7.60
2.80
2,806
281
0.281
31.5
L-Lactate
2.67
2,672
267
0.267
30.0
(89)
2.54
2,539
254
0.254
28.5
26.25
26,250
2625
2.63
76.8
Lactose
25.00
25,000
2500
2.50
73.1
(342)
23.75
23,750
2375
2.38
69.4
42.0
42,000
4200
4.20
456.0
Glycerol
40.0
40,000
4000
4.00
434.3
(92)
38.0
38,000
3800
3.80
412.6
2.63
2625
263
0.263
82.0
Methanol
2.50
2500
250
0.250
78.1
(32)
2.38
2375
238
0.238
74.2
26.25
26,250
2625
2.63
76.8
Sucrose
25.00
25,000
2500
2.50
73.1
(342)
23.75
23,750
2375
2.38
69.4
33.00
33,000
3300
3.30
220.0
Xylose
30.00
30,000
3000
3.00
200.0
(150)
27.00
27,000
2700
2.70
180.0
0.095
95
9.5
0.0095
5.28
Ammonium
0.100
100
10.0
0.0100
5.56
(18)
0.105
105
10.5
0.0105
5.83
0.190
190
19
0.0190
4.86
Potassium
0.200
200
20
0.0200
5.12
(39.1)
0.210
210
21
0.0210
5.37
NOTE: The linearity concentration ranges for each chemistry are shown (top to bottom) as upper limit, theoretical, and
lower limit for each of five concentration units.
7
Range for single linearity check. Refer to
