Bead selection, Bead concentration – Luminex 100 IS Developer Workbench Guide Version 2.3 User Manual
Page 9

x
MAP
Technology
General Guidelines
PN 89-00002-00-084 Rev. B
3
Handling
Instructions
xMAP Carboxylated Microspheres come in various configurations.
The handling of the product varies with the size of the container and
the fill volume. Avoid excessive agitation of the product to reduce
foaming and surface precipitation. The xMAP microspheres will
settle if left undisturbed. Always ensure that the xMAP microspheres
are homogeneously resuspended prior to dispensing. The uncoupled
xMAP microspheres are not monodispersed and tend to aggregate
until coated. Multiple pipetting from the original container may
affect bead concentrations. Protect the xMAP microspheres from
light at all times. Store xMAP microspheres at 2 to 8°C. Follow the
resuspension instructions based on the size of container in use:
•
For 1 mL bottles: Remove from refrigeration and allow
equilibration to room temperature. Place on rotator and gently
rotate for 1-2 minutes or mix by gentle inversion immediately
prior to dispensing.
•
For 4 mL and 16 mL bottles: Remove from refrigeration and
allow equilibration to room temperature. For new 4 mL and 16
mL bottles, place on a rotator for a minimum of 15 minutes for
complete resuspension. After using approximately 250 µL from
the bottle, you can reduce the rotator time to 1 to 2 minutes. For
these volumes, vortexing and rocking are not recommended.
Bead Selection
Select beads from the standard 100-region bead map. Refer to
Table 1. You should select beads starting from the upper left, reading
across to the end of a row, and then down to the next row:
Bead Concentration
The concentration of beads in an assay determines system speed. To
analyze a 96-well plate in one hour, use at least 5000 beads per target
Note:
Refer to the product
information sheet that
accompanies your xMAP
microspheres for additional
information.
Table 1: 100-Region Bead Selection
033
034
035
036
037
038
042
043
044
045
046
047
051
052
053
054
055
056
061
062
063
064
065
066
072
073
074
075
076
077
017
018
019
020
021
024
025
026
027
028
029
032
041
011
012
013
014
006
007
008
083
084
085
086
087
088
089
090
048
057
058
067
068
069
078
079
080
002
003
004
009
015
022
030
039
049
050
059
060
070
071
081
082
001
005
010
016
023
031
040
091
092
093
094
095
096
097
098
099
100