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At-A-Glance

Vortex Mixing and Serial Dilutions

  • Homogenous dilutions up to 5000x

Automated re-analysis and sample introduction for:

  • Samples exceeding calibration range
  • Samples with supressed internal standard

Typical Analytical Results​​

  • Carryover <0.01%
  • Precision <0.5% at 10x Dilutions
  • Accuracy 100% ± 3%
  • Linearity r2 = >0.9995 over wide ranges

Fully integrated with Qtegra ICP and ICP-MS software 

Additional Benefits

  • Save time and reduce labor costs
  • No more recalculating, rediluting, and reanalysis
  • Minimal laboratory footprint
  • Known, proven and reliable technology
  • Syringe pump unit internal leak sensor
  • Liquid flow paths and electronics separated within the syringe pump unit​
  • Promotion of diluted sample homogenization through vortex mixing with high accuracy and precision
  • Flexible control of analysis speed, carryover and memory effects
  • Modular Design – can be added to an existing ASX-560, combined with enclosure and/or ASXPRESS Plus​

Four Modes of Intelligent Auto-Standard Dilution​

The Teledyne CETAC SDXHPLD system redefines “intelligent dilution” with the ability to re-analyze a sample in a single step to fall within a user-specified range. On recognition that an analyzed sample falls outside of a specified range, the sample is re-diluted at a new dilution factor which has been calculated by the system to target a user-specified concentration. Reanalysis is only performed once rather than through an incremental dilution process.​​​​​​

During normal operation the autosampler probe draws a sample which passes through the SDX module and continues to the ICP. For a dilution, the same probe is connected to a high resolution syringe pump for aliquot and diluent addition to the vortex mixing vessel. Following measurement, any remaining sample is drained and the vortex vessel is cleaned.

Dilution and​ Mixing

  1. The probe line is primed with diluent
  2. The probe moves into the sample and takes the prescribed aliquot
  3. The syringe pulls the prescribed amount of diluent
  4. The probe pulls up an air gap
  5. The probe moves to the vortex vessel and dispenses both aliquot and diluent and the mixture is vortex mixed
  6. The probe switches to normal operation then samples the homogenous solution from the vortex vessel
Normal Operation
Normal Operation
Dilution and Mixing
Dilution and Mixing
stages of vortex mixing
(1) aliquot and diluent are delivered to the vessel (2) vessel is mixed (3) dilution is sampled (4) fresh rinse is added and mixed (5) waste is pumped away

The SDXHPLD system can be set to rinse the vortex mixing vessel multiple times as desired to reduce carryover. The sample flow path and vortex mixing vessel are comprised completely of inert materials that are free of trace metals and easy to clean. ​The SDXHPLD uses an independent rinse source from the ASX-560 Autosampler so that, if needed, a di​fferent rinse solution can be used for the autosampler probe versus the SDXHPLD ​vortex mixing vessel. ​​​​​​​​

​​​​Sampler dim​ensio​​ns​ ​ ​ ​ ​
​​Height*​​
 ​62 cm (24")
 ​​
​Width
 ​58 cm (22.8")
 ​
​Depth*
 56 cm (22")
​
 Weight
 13.6 kg (29.9 lbs) with vortex module
​
 ​​*allow extra space for cables/tubing​
​SDX module ​dimensions
​
 Height​
 25.4 cm (10")
Width​
 13.2 cm (5.2")
​Depth*
 21.6 cm (8.5")
Weight​
 4.4 kg (9.7 lbs)
​Communication Interface
 ​USB or Serial (RS-232) ports​
​Power requirements​
 ​100-240 VAC, 47-63 Hz, 3.33A
​Options
 ​ENC-560 DC Clean Enclosure
ASXPRESS PLUS Rapid Sample Introduction System​​
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