GENEQ > Biotechnologie > Photomètres à flamme
| Photomètre à flamme |
| modèle 425 |
Ever since the revolutionary Model
420 was introduced we have been asked to add calcium measurement.
This has been accomplished without any reduction in the existing capability
of the Model 420, due in part to the very well established aspiration,
sample mixing and bumer configuration of the original Model 410 system.
The stable fl ame allows very effi cient dispersion and thermal dissociation
of the sample compounds leading to a reproducible emission of the
elements under analysis. |
| FEATURES |
|
| AUTOMATION |
The New Model 860
Autosampler fi ts entirely within the dimensions of the Model 805
Diluter giving the smallest footprint available. The Model 860 Autosampler
is integrated with the Model 425 operating system with a bi-directional
connection. Operation couldnt be simpler. Pressing Blank and
Calibrate buttons on the Model 425 sends the Model 860 probe to the
blank and calibrant vessels on board the Autosampler carousel. The
system, after calibration, is ready for the run to begin. Press Measure
and walk away! The Model 860 automatically detects the last sample
and fi nishes the run. |
| APPLICATIONS | |
| Na with K | |
|
|
| Ca | |
|
|
| Ca with Na | |
|
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| Ca with K | |
|
| SPECIFICATIONS | ||||
| Model 425 | ||||
|
Na
|
K
|
Li
|
Ca
|
|
| Measurement Range into Flame |
0-40 ppm
|
0-20 ppm
|
0-100 ppm
|
0-100 ppm
|
| Display range |
0-199.9
|
0-199.9
|
0-199.9
|
0-199.9
|
| Sensitivity to show 100 units |
0.5 ppm
|
0.5 ppm
|
2.0 ppm
|
5.0 ppm
|
| Detection Limit |
20 ppb
|
20ppb
|
50 ppb
|
0.50 ppm
|
| Specificity | <0.5% interference from an element at the same concentration of the element under analysis | |||
| Linearity | ± 1 % at 50% of the displayed value | |||
| Model 860 Autosampler | ||||
| Samples Measured | 40 x 2 ml | |||
| Volume required | 200 µl | |||
| Blank and Standard | 10 ml on board | |||
| System Speed | >60 per hour for two channels | |||