ASXpress Plus Sample Injection System
Advantages of the ASXpress Plus:
- Increase sample throughput
- Reduce sample delivery, stabilization and washout times
- Reduce sample waste
- Lower argon consumption
- Reduce sample matrix exposure on ICP-AES / ICP-MS hardware
- Eliminate sample memory effects from peristaltic pump tubing
- Available in white or grey to match your system
Increase Throughput
- More sample throughput in less time by optimizing sample introduction
- Virtually eliminates stabilization time by removing the need for “fast pumping,” improving plasma stability
Reduce Maintenance
- Extend the service life of ICP-AES/ICP-MS components such as nebulizers, spray chambers, and sample cones by reducing their exposure to the sample matrix
Cost Effective
- Minimize sample consumption
- Reduce laboratory costs associated with argon and power consumption, peristaltic pump tubing replacement, and maintenance
Simple Operation
- Easy set-up with minimal modification to the analysis method
- No additional complex software is required; all system parameters are stored in the system’s on-board processor
| Valve/Pump Module Dimensions (H x W x D) |
21.7 cm x 5.8 cm x 12.8 cm (8.5 in x 2.3 in x 5.0 in) |
| Electronics Module Dimensions (H x W x D) |
25.4 cm x 8.3 cm x 20.0 cm (10.0 in x 3.3 in x 7.9 in) |
| Hardware Interfaces |
RS-232 from autosampler to ASXPRESS® PLUS RS-232 or USB from autosampler to host PC
External pump connector
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| Power | 100-240 VAC ~ 47-63 Hz 1.9A |
| Minimum Computer Requirements |
Configuration tool requires Microsoft Windows 10 or later release. No software is required for system operation. ASXpress plus requires any combination of two RS-232 and/or USB communication ports.
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Data generated from oil sample analysis
ICP data before and after ASXpress plus. The only difference between the runs is that half the time was saved using the ASXpress plus. Typical carryover has been measured at less than 0.1%.
The ASXpress plus increases ICP-AES/ ICP-MS analysis throughput by reducing sample delivery/rinse times without affecting measurement time. Multiple sample introduction steps occur simultaneously, resulting in virtual elimination of stabilization and rinse times.
Xpress Configuration Tool for ASXpress plus
The Xpress Configuration Tool is a simple, one-screen interface to configure the ASXpress plus accessory and autosampler, as well as providing access to manual functions of the ASXpress plus and autosampler.
Technology Description
The ASXpress plus Rapid Sample Introduction Accessory increases sample throughput for ICP-AES and ICP-MS analysis by reducing sample loading, signal stabilization and washout times. Using proven technology, the ASXpress plus combines a metal-free, 6-port injection valve and inert, high-speed vacuum pump to rapidly load the sample loop for introduction to the nebulizer. The design of the ASXpress plus facilitates quickly rinsing the sample loop while simultaneously injecting sample into the ICP-AES or ICP-MS nebulizer for analysis. The segmented stream washout technology effectively cleans liquid flow paths more completely and in less time. The result is additional time dedicated to sample analysis, more effective flow path rinse, and reduced time between samples. (See video below.)
Analysis with Typical Setup
A standard analysis system relies upon a single peristaltic pump to both deliver samples to the nebulizer, and rinse the sample flow path between sample deliveries.
Analysis with ASXpress plus Technology
The ASXpress plus utilizes a high speed vacuum pump in addition to the ICP/ICP-MS peristaltic pump. The 6-port valve allows the use of both pumps simultaneously, as is illustrated below, reducing total sample analysis time significantly.
Load Position
The vacuum pump rapidly fills the sample loop (green path), while the ICP-AES or ICP-MS peristaltic pump simultaneously transports carrier solution, keeping the plasma stable (red path).
Inject/Rinse Position
The loaded sample is then pushed into the nebulizer for analysis via the carrier solution flowing through the ICP-AES or ICP-MS peristaltic pump (red/green path). Simultaneously, the autosampler probe is moved to the rinse station and the uptake flow path is flushed with rinse solution via the vacuum pump.