Appendix C: RapidVap Specifications
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60
Original instructions
Solvent:
Methylene
Chloride
Ethyl
Acetate
Hexanes
Acetone
Toluene
Water
Block Preheat &
Block Set Point
Temperature:
40°C
75°C
70°C
55°C
100°C
95°C
Starting Volume
450 ml
91
82
54
90
109
623
400
80
65
52
75
80
531
350
69
56
35
64
69
437
300
59
48
29
54
60
379
250
51
40
22
45
50
323
200
43
33
19
38
41
270
150
36
26
16
31
32
221
100
28
19
11
23
23
173
50
18
12
7
14
13
106
Note 1:
Even though the RapidVap N
2
is capable of processing starting volumes
as high as 450 ml using the 600 ml sample vial, its optimum volume is 300 ml.
Above 300 ml, the vortex speed must be reduced and the nitrogen pressure must be
decreased to prevent the sample from splashing out. This data for starting volumes
over 300 ml was generated by starting the evaporation at reduced levels of nitrogen
pressure and vortex speed. As the solvent evaporated, the nitrogen pressure and
vortex speed were increased.
Table A
Evaporation Time in Upper Portion of Sample Vial
(600 ml Sample Tubes) (Time in Minutes)
N
Number of samples: 8
Nitrogen pressure: 10 psi at volumes 0 thru 300 ml
(see Note 1)
5 psi at volumes above 300 thru 350 ml
4 psi at volumes above 350 thru 400 ml
2 psi at volumes above 400 thru 450 ml
Vortex speed: 70% at volumes 0 thru 300 ml
(see Note 1) 36% at volumes above 300 thru 450 ml
Sample tubes covered with caps
