Biomedical Engineering Reference
In-Depth Information
TABLE 17.1
Mineral.Composition.of.MMNs.as.Revealed.by.a.SEM
Element
Wt%
At%
K-Ratio
a
Z
b
A
c
F
d
OK
29.34
58.41
0.0889
1.0941
0.2767
1.0013
MgK
2.22
2.91
0.0038
1.0542
0.1604
1.0008
AlK
1.27
1.49
0.0028
1.0241
0.2182
1.0015
SiK
3.26
3.69
0.0102
1.0548
0.2966
1.0014
PbM
5.27
0.81
0.0402
0.8284
0.922
1.0003
ClK
2.44
2.19
0.0137
1.0036
0.5545
1.005
KK
0.28
0.23
0.0021
1.0152
0.7168
1.0129
CaK
1.57
1.24
0.013
1.0382
0.7847
1.0206
MnK
2.76
1.6
0.0256
0.9334
0.9626
1.0298
FeK
27.28
15.56
0.2651
0.9529
0.9777
1.0431
ZnK
24.32
11.85
0.2158
0.9305
0.9464
1.0076
Total
100
100
Peak/
Background
OK 38.9 0.95 1.18 40.81
MgK 7.12 2.81 3.59 2.53
AlK 5.76 3.48 4.43 1.65
SiK 22.24 4.72 1.81 4.71
PbM 17.92 6.34 2.21 2.83
ClK 25.56 7.7 1.79 3.32
KK 3.58 9.09 9.33 0.39
CaK 21.04 9.28 2.14 2.27
MnK 26.75 7.63 1.73 3.51
FeK
248.35
7.46 0.47 33.29
ZnK
122.39
5.57 0.68 21.97
a.
Ratio.of.intensity.of.x-ray.measure.for.element.in.sample/Intensity.of.a.standard.for.the.same.ele-
ment.in.the.database.
b.
Factor.for.atomic.number.
c.
Absorption.A.
d.
Fluorescence.
NetIntensity
ofPeak
Background
Intensity
Intensity
Error
Element
17.2.8 Use of MMN Preparations to Detect Water Samples
Artificially Contaminated with Bacteria
•. Sterile. water. samples. (negative. for. the. presence. of. bacteria). were. inoculated.
with.the.indicated.bacterial.culture.separately;.the.fresh.bacterial.cell.growth.of.
Salmonella
was.inoculated.at.different.dilutions,.and.200.μl.of.each.bacterial.sus-
pension.dilution.was.mixed.with.1.ml.of.MMN.suspension.
•. Three.replicates.of.each.of.the.previous.mixtures.were.used.at.different.incubation.
times.(10.min,.30.min,.and.1.h).to.evaluate.the.sensitivity.of.the.assay.period..Each.
tube.containing.the.mixture.was.incubated.with.a.shaking.incubator.at.37°C.
•. A.magnet.(400.G).was.used.for.the.attraction.and.removal.of.the.MMN-bacterial.
mixture. aggregate. in. each. tube. by. placing. the. magnet. on. the. side. walls. of. the.
